attachment-specific detach functions. Returns EBUSY if the
device instance is busy, based on whether or not a sc->sc_inbuf
is allocated. The buffer is malloc()d at spkropen time, and is
free()d in spkrclose().
Now we can actually implement the MODULE_CMD_FINI command and
unload the driver at will.
Addresses my PR kern/51785
DATA SET MANAGEMENT/TRIM command did not exist. As such, the (presumably
immutable) lookup table in the chip does not know that this command
indicates a data write to follow. Use the PRB Protocol Override
functionality to tell the chip the protocol we need for this command.
For PR kern/51756.
Addresses PR kern/51703: audio fails to attach if hardware can't do CD
quality.
Autoconfiguration of hw paramaters to be done later. For now it is
possibile to set 8 bits precision 8000 Hz 1 channel via sysctls.
and WUFC register if wol_enable is 0. ixgbe_setup_low_power_mode() calls
ixgbe_stop() and it resets the chip. The reset change WUC and WUFC registers to
the default, so clearing WUC and WUFC should be done after ixgbe_stop().
The data can be accessed from sysctl, ioctl, interface watchdog
(if_slowtimo) and interrupt handlers. We need to protect the data against
parallel accesses from them.
Currently the mutex is applied to some drivers, we need to apply it to all
drivers in the future.
Note that the mutex is adaptive one for ease of implementation but some
drivers access the data in interrupt context so we cannot apply the mutex
to every drivers as is. We have two options: one is to replace the mutex
with a spin one, which requires some additional works (see
ether_multicast_sysctl), and the other is to modify the drivers to access
the data not in interrupt context somehow.
Audio won't be able to be opened though unless a common format is
configured properly.
This would alow the user to change the common format via sysctls
until hardware is configured.
Simplification of several functions.
This has been exposed with the MODULAR kernel.
kobj_checksyms, 979: [cgd]: linker error: symbol `BF_set_key' not found
kobj_checksyms, 979: [cgd]: linker error: symbol `des_key_sched' not found
kobj_checksyms, 979: [cgd]: linker error: symbol `des_ede3_cbc_encrypt' not found
WARNING: module error: unable to affix module `cgd', error 8
Reviewed by <riastradh>
