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Various Doxygen comment updates and fixes. 

- Add some missing @param lines.

 - Add [in], [out], or [in,out] markers for @param tags.

 - Add explicit "Must not be NULL" comments for parameters where
   the caller should not pass in a NULL.
This commit is contained in:
Uwe Hermann 2015-04-18 23:48:29 +02:00
parent e4f44cf5f2
commit 35578b063e
2 changed files with 193 additions and 148 deletions
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22
config-pattern
View File

@ -1,32 +1,38 @@
/** /**
* Set the {2} for the specified serial port. * Set the {2} for the specified serial port.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* @param {0} {3}. * @param[in] {0} {3}.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
*
* @since 0.1.0
*/ */
enum sp_return sp_set_{0}(struct sp_port *port, {1} {0}); enum sp_return sp_set_{0}(struct sp_port *port, {1} {0});
/** /**
* Get the {2} from a port configuration. * Get the {2} from a port configuration.
* *
* The user should allocate a variable of type {1} and pass a pointer to this * The user should allocate a variable of type {1} and
* to receive the result. * pass a pointer to this to receive the result.
* *
* @param config Pointer to configuration structure. * @param[in] config Pointer to a configuration structure. Must not be NULL.
* @param {0}_ptr Pointer to variable to store result. * @param[out] {0}_ptr Pointer to a variable to store the result. Must not be NULL.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
*
* @since 0.1.0
*/ */
enum sp_return sp_get_config_{0}(const struct sp_port_config *config, {1} *{0}_ptr); enum sp_return sp_get_config_{0}(const struct sp_port_config *config, {1} *{0}_ptr);
/** /**
* Set the {2} in a port configuration. * Set the {2} in a port configuration.
* *
* @param config Pointer to configuration structure. * @param[in] config Pointer to a configuration structure. Must not be NULL.
* @param {0} {3}, or -1 to retain current setting. * @param[in] {0} {3}, or -1 to retain the current setting.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
*
* @since 0.1.0
*/ */
enum sp_return sp_set_config_{0}(struct sp_port_config *config, {1} {0}); enum sp_return sp_set_config_{0}(struct sp_port_config *config, {1} {0});

319
libserialport.h.in
View File

@ -283,8 +283,10 @@ struct sp_event_set {
* *
* The result should be freed after use by calling sp_free_port(). * The result should be freed after use by calling sp_free_port().
* *
* If any error is returned, the variable pointed to by port_ptr will be set * @param[in] portname The OS-specific name of a serial port. Must not be NULL.
* to NULL. Otherwise, it will be set to point to the newly allocated port. * @param[out] port_ptr If any error is returned, the variable pointed to by
* port_ptr will be set to NULL. Otherwise, it will be set
* to point to the newly allocated port. Must not be NULL.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -295,6 +297,8 @@ enum sp_return sp_get_port_by_name(const char *portname, struct sp_port **port_p
/** /**
* Free a port structure obtained from sp_get_port_by_name() or sp_copy_port(). * Free a port structure obtained from sp_get_port_by_name() or sp_copy_port().
* *
* @param[in] port Pointer to a port structure. Must not be NULL.
*
* @since 0.1.0 * @since 0.1.0
*/ */
void sp_free_port(struct sp_port *port); void sp_free_port(struct sp_port *port);
@ -310,8 +314,9 @@ void sp_free_port(struct sp_port *port);
* If a port from the list is to be used after freeing the list, it must be * If a port from the list is to be used after freeing the list, it must be
* copied first using sp_copy_port(). * copied first using sp_copy_port().
* *
* If any error is returned, the variable pointed to by list_ptr will be set * @param[out] list_ptr If any error is returned, the variable pointed to by
* to NULL. Otherwise, it will be set to point to the newly allocated array. * list_ptr will be set to NULL. Otherwise, it will be set
* to point to the newly allocated array. Must not be NULL.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -320,15 +325,17 @@ void sp_free_port(struct sp_port *port);
enum sp_return sp_list_ports(struct sp_port ***list_ptr); enum sp_return sp_list_ports(struct sp_port ***list_ptr);
/** /**
* Make a new copy of a sp_port structure. * Make a new copy of an sp_port structure.
* *
* The user should allocate a variable of type "struct sp_port *" and pass a * The user should allocate a variable of type "struct sp_port *" and pass a
* pointer to this to receive the result. * pointer to this to receive the result.
* *
* The copy should be freed after use by calling sp_free_port(). * The copy should be freed after use by calling sp_free_port().
* *
* If any error is returned, the variable pointed to by copy_ptr will be set * @param[in] port Pointer to a port structure. Must not be NULL.
* to NULL. Otherwise, it will be set to point to the newly allocated copy. * @param[out] copy_ptr If any error is returned, the variable pointed to by
* copy_ptr will be set to NULL. Otherwise, it will be set
* to point to the newly allocated copy. Must not be NULL.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -342,6 +349,8 @@ enum sp_return sp_copy_port(const struct sp_port *port, struct sp_port **copy_pt
* This will also free all the sp_port structures referred to from the list; * This will also free all the sp_port structures referred to from the list;
* any that are to be retained must be copied first using sp_copy_port(). * any that are to be retained must be copied first using sp_copy_port().
* *
* @param[in] ports Pointer to a list of port structures. Must not be NULL.
*
* @since 0.1.0 * @since 0.1.0
*/ */
void sp_free_port_list(struct sp_port **ports); void sp_free_port_list(struct sp_port **ports);
@ -358,8 +367,8 @@ void sp_free_port_list(struct sp_port **ports);
/** /**
* Open the specified serial port. * Open the specified serial port.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* @param flags Flags to use when opening the serial port. * @param[in] flags Flags to use when opening the serial port.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -370,6 +379,8 @@ enum sp_return sp_open(struct sp_port *port, enum sp_mode flags);
/** /**
* Close the specified serial port. * Close the specified serial port.
* *
* @param[in] port Pointer to a port structure. Must not be NULL.
*
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
* @since 0.1.0 * @since 0.1.0
@ -383,11 +394,11 @@ enum sp_return sp_close(struct sp_port *port);
* current operating system; e.g. for Windows it will usually be a "COMn" * current operating system; e.g. for Windows it will usually be a "COMn"
* device name, and for Unix it will be a device path beginning with "/dev/". * device name, and for Unix it will be a device path beginning with "/dev/".
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* *
* @return The port name, or NULL if an invalid port is passed. The name * @return The port name, or NULL if an invalid port is passed. The name
* string is part of the port structure and may not be used after the * string is part of the port structure and may not be used after
* port structure has been freed. * the port structure has been freed.
* *
* @since 0.1.0 * @since 0.1.0
*/ */
@ -396,11 +407,11 @@ char *sp_get_port_name(const struct sp_port *port);
/** /**
* Get a description for a port, to present to end user. * Get a description for a port, to present to end user.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* *
* @return The port description, or NULL if an invalid port is passed. * @return The port description, or NULL if an invalid port is passed.
* The description string is part of the port structure and may not be used * The description string is part of the port structure and may not
* after the port structure has been freed. * be used after the port structure has been freed.
* *
* @since 0.1.1 * @since 0.1.1
*/ */
@ -409,7 +420,7 @@ char *sp_get_port_description(struct sp_port *port);
/** /**
* Get the transport type used by a port. * Get the transport type used by a port.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* *
* @return The port transport type. * @return The port transport type.
* *
@ -420,9 +431,9 @@ enum sp_transport sp_get_port_transport(struct sp_port *port);
/** /**
* Get the USB bus number and address on bus of a USB serial adapter port. * Get the USB bus number and address on bus of a USB serial adapter port.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* @param usb_bus Pointer to variable to store USB bus. * @param[out] usb_bus Pointer to a variable to store the USB bus. Must not be NULL.
* @param usb_address Pointer to variable to store USB address * @param[out] usb_address Pointer to a variable to store the USB address. Must not be NULL.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -434,9 +445,9 @@ enum sp_return sp_get_port_usb_bus_address(const struct sp_port *port,
/** /**
* Get the USB Vendor ID and Product ID of a USB serial adapter port. * Get the USB Vendor ID and Product ID of a USB serial adapter port.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* @param usb_vid Pointer to variable to store USB VID. * @param[out] usb_vid Pointer to a variable to store the USB VID. Must not be NULL.
* @param usb_pid Pointer to variable to store USB PID * @param[out] usb_pid Pointer to a variable to store the USB PID. Must not be NULL.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -447,11 +458,11 @@ enum sp_return sp_get_port_usb_vid_pid(const struct sp_port *port, int *usb_vid,
/** /**
* Get the USB manufacturer string of a USB serial adapter port. * Get the USB manufacturer string of a USB serial adapter port.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* *
* @return The port manufacturer string, or NULL if an invalid port is passed. * @return The port manufacturer string, or NULL if an invalid port is passed.
* The manufacturer string is part of the port structure and may not be used * The manufacturer string is part of the port structure and may not
* after the port structure has been freed. * be used after the port structure has been freed.
* *
* @since 0.1.1 * @since 0.1.1
*/ */
@ -460,11 +471,11 @@ char *sp_get_port_usb_manufacturer(const struct sp_port *port);
/** /**
* Get the USB product string of a USB serial adapter port. * Get the USB product string of a USB serial adapter port.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* *
* @return The port product string, or NULL if an invalid port is passed. * @return The port product string, or NULL if an invalid port is passed.
* The product string is part of the port structure and may not be used * The product string is part of the port structure and may not be
* after the port structure has been freed. * used after the port structure has been freed.
* *
* @since 0.1.1 * @since 0.1.1
*/ */
@ -473,11 +484,11 @@ char *sp_get_port_usb_product(const struct sp_port *port);
/** /**
* Get the USB serial number string of a USB serial adapter port. * Get the USB serial number string of a USB serial adapter port.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* *
* @return The port serial number, or NULL if an invalid port is passed. * @return The port serial number, or NULL if an invalid port is passed.
* The serial number string is part of the port structure and may not be used * The serial number string is part of the port structure and may
* after the port structure has been freed. * not be used after the port structure has been freed.
* *
* @since 0.1.1 * @since 0.1.1
*/ */
@ -486,11 +497,11 @@ char *sp_get_port_usb_serial(const struct sp_port *port);
/** /**
* Get the MAC address of a Bluetooth serial adapter port. * Get the MAC address of a Bluetooth serial adapter port.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* *
* @return The port MAC address, or NULL if an invalid port is passed. * @return The port MAC address, or NULL if an invalid port is passed.
* The MAC address string is part of the port structure and may not be used * The MAC address string is part of the port structure and may not
* after the port structure has been freed. * be used after the port structure has been freed.
* *
* @since 0.1.1 * @since 0.1.1
*/ */
@ -516,6 +527,11 @@ char *sp_get_port_bluetooth_address(const struct sp_port *port);
* that direct usage of the OS handle will not conflict with the * that direct usage of the OS handle will not conflict with the
* library's own usage of the port. Be careful. * library's own usage of the port. Be careful.
* *
* @param[in] port Pointer to a port structure. Must not be NULL.
* @param[out] result_ptr If any error is returned, the variable pointed to by
* result_ptr will be set to NULL. Otherwise, it will
* be set to point to the OS handle. Must not be NULL.
*
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
* @since 0.1.0 * @since 0.1.0
@ -544,7 +560,8 @@ enum sp_return sp_get_port_handle(const struct sp_port *port, void *result_ptr);
* *
* The structure should be freed after use by calling sp_free_config(). * The structure should be freed after use by calling sp_free_config().
* *
* @param config_ptr Pointer to variable to receive result. * @param[out] config_ptr Pointer to a variable to receive the result.
* Must not be NULL.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -555,7 +572,7 @@ enum sp_return sp_new_config(struct sp_port_config **config_ptr);
/** /**
* Free a port configuration structure. * Free a port configuration structure.
* *
* @param config Pointer to configuration structure. * @param[in] config Pointer to a configuration structure. Must not be NULL.
* *
* @since 0.1.0 * @since 0.1.0
*/ */
@ -572,6 +589,10 @@ void sp_free_config(struct sp_port_config *config);
* supported by libserialport, will be set to special values that are * supported by libserialport, will be set to special values that are
* ignored by sp_set_config(). * ignored by sp_set_config().
* *
* @param[in] port Pointer to a port structure. Must not be NULL.
* @param[out] config Pointer to a configuration structure that will hold
* the result. Must not be NULL.
*
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
* @since 0.1.0 * @since 0.1.0
@ -585,6 +606,9 @@ enum sp_return sp_get_config(struct sp_port *port, struct sp_port_config *config
* -1, but see the documentation for each field). These values will be ignored * -1, but see the documentation for each field). These values will be ignored
* and the corresponding setting left unchanged on the port. * and the corresponding setting left unchanged on the port.
* *
* @param[in] port Pointer to a port structure. Must not be NULL.
* @param[in] config Pointer to a configuration structure. Must not be NULL.
*
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
* @since 0.1.0 * @since 0.1.0
@ -594,8 +618,8 @@ enum sp_return sp_set_config(struct sp_port *port, const struct sp_port_config *
/** /**
* Set the baud rate for the specified serial port. * Set the baud rate for the specified serial port.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* @param baudrate Baud rate in bits per second. * @param[in] baudrate Baud rate in bits per second.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -606,11 +630,11 @@ enum sp_return sp_set_baudrate(struct sp_port *port, int baudrate);
/** /**
* Get the baud rate from a port configuration. * Get the baud rate from a port configuration.
* *
* The user should allocate a variable of type int and pass a pointer to this * The user should allocate a variable of type int and
* to receive the result. * pass a pointer to this to receive the result.
* *
* @param config Pointer to configuration structure. * @param[in] config Pointer to a configuration structure. Must not be NULL.
* @param baudrate_ptr Pointer to variable to store result. * @param[out] baudrate_ptr Pointer to a variable to store the result. Must not be NULL.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -621,8 +645,8 @@ enum sp_return sp_get_config_baudrate(const struct sp_port_config *config, int *
/** /**
* Set the baud rate in a port configuration. * Set the baud rate in a port configuration.
* *
* @param config Pointer to configuration structure. * @param[in] config Pointer to a configuration structure. Must not be NULL.
* @param baudrate Baud rate in bits per second, or -1 to retain current setting. * @param[in] baudrate Baud rate in bits per second, or -1 to retain the current setting.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -633,8 +657,8 @@ enum sp_return sp_set_config_baudrate(struct sp_port_config *config, int baudrat
/** /**
* Set the data bits for the specified serial port. * Set the data bits for the specified serial port.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* @param bits Number of data bits. * @param[in] bits Number of data bits.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -645,11 +669,11 @@ enum sp_return sp_set_bits(struct sp_port *port, int bits);
/** /**
* Get the data bits from a port configuration. * Get the data bits from a port configuration.
* *
* The user should allocate a variable of type int and pass a pointer to this * The user should allocate a variable of type int and
* to receive the result. * pass a pointer to this to receive the result.
* *
* @param config Pointer to configuration structure. * @param[in] config Pointer to a configuration structure. Must not be NULL.
* @param bits_ptr Pointer to variable to store result. * @param[out] bits_ptr Pointer to a variable to store the result. Must not be NULL.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -660,8 +684,8 @@ enum sp_return sp_get_config_bits(const struct sp_port_config *config, int *bits
/** /**
* Set the data bits in a port configuration. * Set the data bits in a port configuration.
* *
* @param config Pointer to configuration structure. * @param[in] config Pointer to a configuration structure. Must not be NULL.
* @param bits Number of data bits, or -1 to retain current setting. * @param[in] bits Number of data bits, or -1 to retain the current setting.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -672,8 +696,8 @@ enum sp_return sp_set_config_bits(struct sp_port_config *config, int bits);
/** /**
* Set the parity setting for the specified serial port. * Set the parity setting for the specified serial port.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* @param parity Parity setting. * @param[in] parity Parity setting.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -684,11 +708,11 @@ enum sp_return sp_set_parity(struct sp_port *port, enum sp_parity parity);
/** /**
* Get the parity setting from a port configuration. * Get the parity setting from a port configuration.
* *
* The user should allocate a variable of type enum sp_parity and pass a pointer to this * The user should allocate a variable of type enum sp_parity and
* to receive the result. * pass a pointer to this to receive the result.
* *
* @param config Pointer to configuration structure. * @param[in] config Pointer to a configuration structure. Must not be NULL.
* @param parity_ptr Pointer to variable to store result. * @param[out] parity_ptr Pointer to a variable to store the result. Must not be NULL.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -699,8 +723,8 @@ enum sp_return sp_get_config_parity(const struct sp_port_config *config, enum sp
/** /**
* Set the parity setting in a port configuration. * Set the parity setting in a port configuration.
* *
* @param config Pointer to configuration structure. * @param[in] config Pointer to a configuration structure. Must not be NULL.
* @param parity Parity setting, or -1 to retain current setting. * @param[in] parity Parity setting, or -1 to retain the current setting.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -711,8 +735,8 @@ enum sp_return sp_set_config_parity(struct sp_port_config *config, enum sp_parit
/** /**
* Set the stop bits for the specified serial port. * Set the stop bits for the specified serial port.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* @param stopbits Number of stop bits. * @param[in] stopbits Number of stop bits.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -723,11 +747,11 @@ enum sp_return sp_set_stopbits(struct sp_port *port, int stopbits);
/** /**
* Get the stop bits from a port configuration. * Get the stop bits from a port configuration.
* *
* The user should allocate a variable of type int and pass a pointer to this * The user should allocate a variable of type int and
* to receive the result. * pass a pointer to this to receive the result.
* *
* @param config Pointer to configuration structure. * @param[in] config Pointer to a configuration structure. Must not be NULL.
* @param stopbits_ptr Pointer to variable to store result. * @param[out] stopbits_ptr Pointer to a variable to store the result. Must not be NULL.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -738,8 +762,8 @@ enum sp_return sp_get_config_stopbits(const struct sp_port_config *config, int *
/** /**
* Set the stop bits in a port configuration. * Set the stop bits in a port configuration.
* *
* @param config Pointer to configuration structure. * @param[in] config Pointer to a configuration structure. Must not be NULL.
* @param stopbits Number of stop bits, or -1 to retain current setting. * @param[in] stopbits Number of stop bits, or -1 to retain the current setting.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -750,8 +774,8 @@ enum sp_return sp_set_config_stopbits(struct sp_port_config *config, int stopbit
/** /**
* Set the RTS pin behaviour for the specified serial port. * Set the RTS pin behaviour for the specified serial port.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* @param rts RTS pin mode. * @param[in] rts RTS pin mode.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -762,11 +786,11 @@ enum sp_return sp_set_rts(struct sp_port *port, enum sp_rts rts);
/** /**
* Get the RTS pin behaviour from a port configuration. * Get the RTS pin behaviour from a port configuration.
* *
* The user should allocate a variable of type enum sp_rts and pass a pointer to this * The user should allocate a variable of type enum sp_rts and
* to receive the result. * pass a pointer to this to receive the result.
* *
* @param config Pointer to configuration structure. * @param[in] config Pointer to a configuration structure. Must not be NULL.
* @param rts_ptr Pointer to variable to store result. * @param[out] rts_ptr Pointer to a variable to store the result. Must not be NULL.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -777,8 +801,8 @@ enum sp_return sp_get_config_rts(const struct sp_port_config *config, enum sp_rt
/** /**
* Set the RTS pin behaviour in a port configuration. * Set the RTS pin behaviour in a port configuration.
* *
* @param config Pointer to configuration structure. * @param[in] config Pointer to a configuration structure. Must not be NULL.
* @param rts RTS pin mode, or -1 to retain current setting. * @param[in] rts RTS pin mode, or -1 to retain the current setting.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -789,8 +813,8 @@ enum sp_return sp_set_config_rts(struct sp_port_config *config, enum sp_rts rts)
/** /**
* Set the CTS pin behaviour for the specified serial port. * Set the CTS pin behaviour for the specified serial port.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* @param cts CTS pin mode. * @param[in] cts CTS pin mode.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -801,11 +825,11 @@ enum sp_return sp_set_cts(struct sp_port *port, enum sp_cts cts);
/** /**
* Get the CTS pin behaviour from a port configuration. * Get the CTS pin behaviour from a port configuration.
* *
* The user should allocate a variable of type enum sp_cts and pass a pointer to this * The user should allocate a variable of type enum sp_cts and
* to receive the result. * pass a pointer to this to receive the result.
* *
* @param config Pointer to configuration structure. * @param[in] config Pointer to a configuration structure. Must not be NULL.
* @param cts_ptr Pointer to variable to store result. * @param[out] cts_ptr Pointer to a variable to store the result. Must not be NULL.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -816,8 +840,8 @@ enum sp_return sp_get_config_cts(const struct sp_port_config *config, enum sp_ct
/** /**
* Set the CTS pin behaviour in a port configuration. * Set the CTS pin behaviour in a port configuration.
* *
* @param config Pointer to configuration structure. * @param[in] config Pointer to a configuration structure. Must not be NULL.
* @param cts CTS pin mode, or -1 to retain current setting. * @param[in] cts CTS pin mode, or -1 to retain the current setting.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -828,8 +852,8 @@ enum sp_return sp_set_config_cts(struct sp_port_config *config, enum sp_cts cts)
/** /**
* Set the DTR pin behaviour for the specified serial port. * Set the DTR pin behaviour for the specified serial port.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* @param dtr DTR pin mode. * @param[in] dtr DTR pin mode.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -840,11 +864,11 @@ enum sp_return sp_set_dtr(struct sp_port *port, enum sp_dtr dtr);
/** /**
* Get the DTR pin behaviour from a port configuration. * Get the DTR pin behaviour from a port configuration.
* *
* The user should allocate a variable of type enum sp_dtr and pass a pointer to this * The user should allocate a variable of type enum sp_dtr and
* to receive the result. * pass a pointer to this to receive the result.
* *
* @param config Pointer to configuration structure. * @param[in] config Pointer to a configuration structure. Must not be NULL.
* @param dtr_ptr Pointer to variable to store result. * @param[out] dtr_ptr Pointer to a variable to store the result. Must not be NULL.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -855,8 +879,8 @@ enum sp_return sp_get_config_dtr(const struct sp_port_config *config, enum sp_dt
/** /**
* Set the DTR pin behaviour in a port configuration. * Set the DTR pin behaviour in a port configuration.
* *
* @param config Pointer to configuration structure. * @param[in] config Pointer to a configuration structure. Must not be NULL.
* @param dtr DTR pin mode, or -1 to retain current setting. * @param[in] dtr DTR pin mode, or -1 to retain the current setting.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -867,8 +891,8 @@ enum sp_return sp_set_config_dtr(struct sp_port_config *config, enum sp_dtr dtr)
/** /**
* Set the DSR pin behaviour for the specified serial port. * Set the DSR pin behaviour for the specified serial port.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* @param dsr DSR pin mode. * @param[in] dsr DSR pin mode.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -879,11 +903,11 @@ enum sp_return sp_set_dsr(struct sp_port *port, enum sp_dsr dsr);
/** /**
* Get the DSR pin behaviour from a port configuration. * Get the DSR pin behaviour from a port configuration.
* *
* The user should allocate a variable of type enum sp_dsr and pass a pointer to this * The user should allocate a variable of type enum sp_dsr and
* to receive the result. * pass a pointer to this to receive the result.
* *
* @param config Pointer to configuration structure. * @param[in] config Pointer to a configuration structure. Must not be NULL.
* @param dsr_ptr Pointer to variable to store result. * @param[out] dsr_ptr Pointer to a variable to store the result. Must not be NULL.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -894,8 +918,8 @@ enum sp_return sp_get_config_dsr(const struct sp_port_config *config, enum sp_ds
/** /**
* Set the DSR pin behaviour in a port configuration. * Set the DSR pin behaviour in a port configuration.
* *
* @param config Pointer to configuration structure. * @param[in] config Pointer to a configuration structure. Must not be NULL.
* @param dsr DSR pin mode, or -1 to retain current setting. * @param[in] dsr DSR pin mode, or -1 to retain the current setting.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -906,8 +930,8 @@ enum sp_return sp_set_config_dsr(struct sp_port_config *config, enum sp_dsr dsr)
/** /**
* Set the XON/XOFF configuration for the specified serial port. * Set the XON/XOFF configuration for the specified serial port.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* @param xon_xoff XON/XOFF mode. * @param[in] xon_xoff XON/XOFF mode.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -918,11 +942,11 @@ enum sp_return sp_set_xon_xoff(struct sp_port *port, enum sp_xonxoff xon_xoff);
/** /**
* Get the XON/XOFF configuration from a port configuration. * Get the XON/XOFF configuration from a port configuration.
* *
* The user should allocate a variable of type enum sp_xonxoff and pass a pointer to this * The user should allocate a variable of type enum sp_xonxoff and
* to receive the result. * pass a pointer to this to receive the result.
* *
* @param config Pointer to configuration structure. * @param[in] config Pointer to a configuration structure. Must not be NULL.
* @param xon_xoff_ptr Pointer to variable to store result. * @param[out] xon_xoff_ptr Pointer to a variable to store the result. Must not be NULL.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -933,8 +957,8 @@ enum sp_return sp_get_config_xon_xoff(const struct sp_port_config *config, enum
/** /**
* Set the XON/XOFF configuration in a port configuration. * Set the XON/XOFF configuration in a port configuration.
* *
* @param config Pointer to configuration structure. * @param[in] config Pointer to a configuration structure. Must not be NULL.
* @param xon_xoff XON/XOFF mode, or -1 to retain current setting. * @param[in] xon_xoff XON/XOFF mode, or -1 to retain the current setting.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -950,8 +974,8 @@ enum sp_return sp_set_config_xon_xoff(struct sp_port_config *config, enum sp_xon
* type. For more fine-grained control of these settings, use their * type. For more fine-grained control of these settings, use their
* individual configuration functions. * individual configuration functions.
* *
* @param config Pointer to configuration structure. * @param[in] config Pointer to a configuration structure. Must not be NULL.
* @param flowcontrol Flow control setting to use. * @param[in] flowcontrol Flow control setting to use.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -967,8 +991,8 @@ enum sp_return sp_set_config_flowcontrol(struct sp_port_config *config, enum sp_
* type. For more fine-grained control of these settings, use their * type. For more fine-grained control of these settings, use their
* individual configuration functions. * individual configuration functions.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* @param flowcontrol Flow control setting to use. * @param[in] flowcontrol Flow control setting to use.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -999,10 +1023,10 @@ enum sp_return sp_set_flowcontrol(struct sp_port *port, enum sp_flowcontrol flow
* sp_get_port_handle() and use this to call select() or pselect(), * sp_get_port_handle() and use this to call select() or pselect(),
* with appropriate arrangements to return if a signal is received. * with appropriate arrangements to return if a signal is received.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* @param buf Buffer in which to store the bytes read. * @param[out] buf Buffer in which to store the bytes read. Must not be NULL.
* @param count Requested number of bytes to read. * @param[in] count Requested number of bytes to read.
* @param timeout Timeout in milliseconds, or zero to wait indefinitely. * @param[in] timeout Timeout in milliseconds, or zero to wait indefinitely.
* *
* @return The number of bytes read on success, or a negative error code. If * @return The number of bytes read on success, or a negative error code. If
* the number of bytes returned is less than that requested, the * the number of bytes returned is less than that requested, the
@ -1017,9 +1041,9 @@ enum sp_return sp_blocking_read(struct sp_port *port, void *buf, size_t count, u
/** /**
* Read bytes from the specified serial port, without blocking. * Read bytes from the specified serial port, without blocking.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* @param buf Buffer in which to store the bytes read. * @param[out] buf Buffer in which to store the bytes read. Must not be NULL.
* @param count Maximum number of bytes to read. * @param[in] count Maximum number of bytes to read.
* *
* @return The number of bytes read on success, or a negative error code. The * @return The number of bytes read on success, or a negative error code. The
* number of bytes returned may be any number from zero to the maximum * number of bytes returned may be any number from zero to the maximum
@ -1048,10 +1072,10 @@ enum sp_return sp_nonblocking_read(struct sp_port *port, void *buf, size_t count
* sp_get_port_handle() and use this to call select() or pselect(), * sp_get_port_handle() and use this to call select() or pselect(),
* with appropriate arrangements to return if a signal is received. * with appropriate arrangements to return if a signal is received.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* @param buf Buffer containing the bytes to write. * @param[in] buf Buffer containing the bytes to write. Must not be NULL.
* @param count Requested number of bytes to write. * @param[in] count Requested number of bytes to write.
* @param timeout Timeout in milliseconds, or zero to wait indefinitely. * @param[in] timeout Timeout in milliseconds, or zero to wait indefinitely.
* *
* @return The number of bytes written on success, or a negative error code. * @return The number of bytes written on success, or a negative error code.
* If the number of bytes returned is less than that requested, the * If the number of bytes returned is less than that requested, the
@ -1074,9 +1098,9 @@ enum sp_return sp_blocking_write(struct sp_port *port, const void *buf, size_t c
* been transmitted, use the sp_output_waiting() function. To wait until all * been transmitted, use the sp_output_waiting() function. To wait until all
* written bytes have actually been transmitted, use the sp_drain() function. * written bytes have actually been transmitted, use the sp_drain() function.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* @param buf Buffer containing the bytes to write. * @param[in] buf Buffer containing the bytes to write. Must not be NULL.
* @param count Maximum number of bytes to write. * @param[in] count Maximum number of bytes to write.
* *
* @return The number of bytes written on success, or a negative error code. * @return The number of bytes written on success, or a negative error code.
* The number of bytes returned may be any number from zero to the * The number of bytes returned may be any number from zero to the
@ -1089,7 +1113,7 @@ enum sp_return sp_nonblocking_write(struct sp_port *port, const void *buf, size_
/** /**
* Gets the number of bytes waiting in the input buffer. * Gets the number of bytes waiting in the input buffer.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* *
* @return Number of bytes waiting on success, a negative error code otherwise. * @return Number of bytes waiting on success, a negative error code otherwise.
* *
@ -1100,7 +1124,7 @@ enum sp_return sp_input_waiting(struct sp_port *port);
/** /**
* Gets the number of bytes waiting in the output buffer. * Gets the number of bytes waiting in the output buffer.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* *
* @return Number of bytes waiting on success, a negative error code otherwise. * @return Number of bytes waiting on success, a negative error code otherwise.
* *
@ -1111,8 +1135,8 @@ enum sp_return sp_output_waiting(struct sp_port *port);
/** /**
* Flush serial port buffers. Data in the selected buffer(s) is discarded. * Flush serial port buffers. Data in the selected buffer(s) is discarded.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* @param buffers Which buffer(s) to flush. * @param[in] buffers Which buffer(s) to flush.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -1130,7 +1154,7 @@ enum sp_return sp_flush(struct sp_port *port, enum sp_buffer buffers);
* signal handler, you would need to implement your own blocking * signal handler, you would need to implement your own blocking
* drain by polling the result of sp_output_waiting(). * drain by polling the result of sp_output_waiting().
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -1156,6 +1180,10 @@ enum sp_return sp_drain(struct sp_port *port);
* *
* The result should be freed after use by calling sp_free_event_set(). * The result should be freed after use by calling sp_free_event_set().
* *
* @param[out] result_ptr If any error is returned, the variable pointed to by
* result_ptr will be set to NULL. Otherwise, it will
* be set to point to the event set. Must not be NULL.
*
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
* @since 0.1.0 * @since 0.1.0
@ -1171,9 +1199,9 @@ enum sp_return sp_new_event_set(struct sp_event_set **result_ptr);
* After the port is closed or the port structure freed, the results may * After the port is closed or the port structure freed, the results may
* no longer be valid. * no longer be valid.
* *
* @param event_set Event set to update. * @param[in,out] event_set Event set to update. Must not be NULL.
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* @param mask Bitmask of events to be waited for. * @param[in] mask Bitmask of events to be waited for.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -1185,8 +1213,8 @@ enum sp_return sp_add_port_events(struct sp_event_set *event_set,
/** /**
* Wait for any of a set of events to occur. * Wait for any of a set of events to occur.
* *
* @param event_set Event set to wait on. * @param[in] event_set Event set to wait on. Must not be NULL.
* @param timeout Timeout in milliseconds, or zero to wait indefinitely. * @param[in] timeout Timeout in milliseconds, or zero to wait indefinitely.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -1197,6 +1225,8 @@ enum sp_return sp_wait(struct sp_event_set *event_set, unsigned int timeout);
/** /**
* Free a structure allocated by sp_new_event_set(). * Free a structure allocated by sp_new_event_set().
* *
* @param[in] event_set Event set to free. Must not be NULL.
*
* @since 0.1.0 * @since 0.1.0
*/ */
void sp_free_event_set(struct sp_event_set *event_set); void sp_free_event_set(struct sp_event_set *event_set);
@ -1219,8 +1249,9 @@ void sp_free_event_set(struct sp_event_set *event_set);
* in which individual signals can be checked by bitwise OR with values of * in which individual signals can be checked by bitwise OR with values of
* the sp_signal enum. * the sp_signal enum.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* @param signal_mask Pointer to variable to receive result. * @param[out] signal_mask Pointer to a variable to receive the result.
* Must not be NULL.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -1231,7 +1262,7 @@ enum sp_return sp_get_signals(struct sp_port *port, enum sp_signal *signal_mask)
/** /**
* Put the port transmit line into the break state. * Put the port transmit line into the break state.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -1242,7 +1273,7 @@ enum sp_return sp_start_break(struct sp_port *port);
/** /**
* Take the port transmit line out of the break state. * Take the port transmit line out of the break state.
* *
* @param port Pointer to port structure. * @param[in] port Pointer to a port structure. Must not be NULL.
* *
* @return SP_OK upon success, a negative error code otherwise. * @return SP_OK upon success, a negative error code otherwise.
* *
@ -1290,6 +1321,8 @@ char *sp_last_error_message(void);
/** /**
* Free an error message returned by sp_last_error_message(). * Free an error message returned by sp_last_error_message().
* *
* @param[in] message The error message string to free. Must not be NULL.
*
* @since 0.1.0 * @since 0.1.0
*/ */
void sp_free_error_message(char *message); void sp_free_error_message(char *message);
@ -1306,6 +1339,9 @@ void sp_free_error_message(char *message);
* *
* The default handler is sp_default_debug_handler(). * The default handler is sp_default_debug_handler().
* *
* @param[in] handler The handler function to use. Can be NULL (in that case
* all debug messages will be ignored).
*
* @since 0.1.0 * @since 0.1.0
*/ */
void sp_set_debug_handler(void (*handler)(const char *format, ...)); void sp_set_debug_handler(void (*handler)(const char *format, ...));
@ -1317,6 +1353,9 @@ void sp_set_debug_handler(void (*handler)(const char *format, ...));
* environment variable LIBSERIALPORT_DEBUG is set. Otherwise, they are * environment variable LIBSERIALPORT_DEBUG is set. Otherwise, they are
* ignored. * ignored.
* *
* @param[in] format The format string to use. Must not be NULL.
* @param[in] ... The variable length argument list to use.
*
* @since 0.1.0 * @since 0.1.0
*/ */
void sp_default_debug_handler(const char *format, ...); void sp_default_debug_handler(const char *format, ...);