On 03/26/18 10:19, Takashi Sakamoto wrote: > Hi, > > On Mar 26 2018 14:11, Kirill Marinushkin wrote: >> Currently, all playback switches are described as mute. It is shown as: >> >> [OO] == sound is on (left and right channels) >> [MM] == sound is muted (left and right channels) >> >> But cards can have different kinds of switch controls, not only mute. At >> least usb-audio provides boolean controls as playback switches for: >> >> * clock source validity (read only switch) >> * processing features on/off (rw switch) >> * potentially other similar use-cases >> >> It becames confusing, because it is shown as: >> >> [OO] == clock source is valid >> [MM] == clock source is invalid >> >> [OO] == processing feature is on >> [MM] == processing feature is off >> >> And from the help, it is not clear how to toggle such switches. > > Could you show such control elements to help reviewers? For example, output from 'amixer' might be enough. > Hello Takashi Sakamoto, I misread your message. You mean the amixer output, not the alsamixer. Below I attach the output from amixer. $ amixer -c2 Simple mixer control 'Clock Source 15 Validity',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'Up Down',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'Up Down Mode Select',0 Capabilities: volume volume-joined Playback channels: Mono Capture channels: Mono Limits: 0 - 1 Mono: 1 [100%] > Regards > > Takashi Sakamoto _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
