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We have iovec's now and add the api version define.

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@149 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
David Reid 2002-07-12 20:20:37 +00:00
parent 100b0f973d
commit 03b2717394
1 changed files with 5 additions and 5 deletions
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10
headers/private/kernel/drivers.h
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@ -8,6 +8,7 @@
#include <types.h>
#include <defines.h>
#include <sys/uio.h>
/* ---
these hooks are how the kernel accesses the device
@ -29,12 +30,12 @@ typedef status_t (*device_select_hook) (void *cookie, uint8 event, uint32 ref,
selectsync *sync);
typedef status_t (*device_deselect_hook) (void *cookie, uint8 event,
selectsync *sync);
/* XXX - no iovec support yet
typedef status_t (*device_readv_hook) (void *cookie, off_t position, const iovec *vec,
size_t count, size_t *numBytes);
typedef status_t (*device_writev_hook) (void *cookie, off_t position, const iovec *vec,
size_t count, size_t *numBytes);
*/
#define B_CUR_DRIVER_API_VERSION 2
/* ---
the device_hooks structure is a descriptor for the device, giving its
@ -50,9 +51,8 @@ typedef struct {
device_write_hook write; /* writes to the device */
device_select_hook select; /* start select */
device_deselect_hook deselect; /* stop select */
/* XXX - no iovec support yet */
// device_readv_hook readv; /* scatter-gather read from the device */
// device_writev_hook writev; /* scatter-gather write to the device */
device_readv_hook readv; /* scatter-gather read from the device */
device_writev_hook writev; /* scatter-gather write to the device */
} device_hooks;
status_t init_hardware(void);