10 Nov
2014
10 Nov
'14
10:47 a.m.
Damien Zammit wrote:
This patch provides the infrastructure for the Digidesign Mbox 1 to have a mixer control for selecting the clock source. Valid options are Internal and S/PDIF external sync. A non-documented command is sent to the device to enable this feature found by reverse engineering and bus snooping.
+++ b/sound/usb/mixer_quirks.c +static int snd_mbox1_switch_put(struct snd_kcontrol *kctl,
struct snd_ctl_elem_value *ucontrol)+{ ...
down_read(&chip->shutdown_rwsem);
When I wrote "semaphore", I meant this one.
Regards, Clemens