[alsa-devel] snd_pcm_hw_params_free() immediately after snd_pcm_hw_params() ???

[Raymond Yau]

2010/1/21 Clemens Ladisch <clemens at ladisch.de>

> Raymond Yau wrote:
> > Is there any flags in substream which can indicate snd_xxx_hw_params()
> was
> > called at first time since snd_xxx_hw_params() were called many times
> > during OSS emulation (probing the supported rates , channels , .... ) ?
>
> There is no such flag.  It is the responsibility of the driver to track
> the resources it has allocated.
>
> If a resource does not depend on the hardware parameters, it might be
> a better idea to allocate/free it in the open/close callbacks.
>
>
> Best regards,
> Clemens
>

https://bugzilla.redhat.com/show_bug.cgi?id=497739

Apr 26 11:20:11 localhost kernel: vortex_adb_addroutes: unending route! 0x40
Apr 26 11:20:11 localhost kernel: vortex_adb_addroutes: unending route! 0x2060
Apr 26 11:20:11 localhost kernel: vortex_adb_addroutes: unending route! 0x3641
Apr 26 11:20:11 localhost kernel: vortex_adb_addroutes: unending route! 0x2101
Apr 26 11:20:11 localhost kernel: vortex_adb_delroutes: route not found! 0x3641
Apr 26 11:20:11 localhost kernel: vortex_adb_delroutes: route not found! 0x2101
Apr 26 11:20:11 localhost kernel: mix ALARM 0
Apr 26 11:20:11 localhost kernel: vortex_adb_delroutes: route not found! 0x3593
Apr 26 11:20:11 localhost kernel: mix ALARM 0
Apr 26 11:20:11 localhost kernel: Vortex: vortex_fifo_setadbctrl fail
Apr 26 11:20:11 localhost kernel: vortex_adb_addroutes: unending route! 0x3642
Apr 26 11:20:11 localhost kernel: vortex_adb_addroutes: unending route! 0x3743
Apr 26 11:20:11 localhost kernel: vortex_adb_addroutes: unending route! 0x2201
Apr 26 11:20:11 localhost kernel: Vortex: vortex_fifo_setadbctrl fail


did the suspend/resume cycle call snd_xxx_hw_params() or snd_xxx_hw_free()
when the driver did not support suspend/resume ?