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/linux/sound/usb/
H A Dpower.c11785ef53228d23ec386f5fe4a34601536f0c891 Tue Jul 31 14:28:42 CEST 2018 Jorge Sanjuan <jorge.sanjuan@codethink.co.uk> ALSA: usb-audio: Initial Power Domain support

Thee USB Audio Class 3 (UAC3) introduces Power Domains as a new
feature to let a host turn individual parts of an audio function
to different power states via USB requests. This lets the device
get to know a bit amore about what the host is up to in order to
optimize power consumption efficiently.

The Power Domains are optional for UAC3 configuration but all
UAC3 devices shall include at least one BADD configuration where
the support for Power Domains is compulsory.

This patch adds a set of features/helpers to parse these power
domains and change their status.

Signed-off-by: Jorge Sanjuan <jorge.sanjuan@codethink.co.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
H A Dpower.hdiff 11785ef53228d23ec386f5fe4a34601536f0c891 Tue Jul 31 14:28:42 CEST 2018 Jorge Sanjuan <jorge.sanjuan@codethink.co.uk> ALSA: usb-audio: Initial Power Domain support

Thee USB Audio Class 3 (UAC3) introduces Power Domains as a new
feature to let a host turn individual parts of an audio function
to different power states via USB requests. This lets the device
get to know a bit amore about what the host is up to in order to
optimize power consumption efficiently.

The Power Domains are optional for UAC3 configuration but all
UAC3 devices shall include at least one BADD configuration where
the support for Power Domains is compulsory.

This patch adds a set of features/helpers to parse these power
domains and change their status.

Signed-off-by: Jorge Sanjuan <jorge.sanjuan@codethink.co.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
H A DMakefilediff 11785ef53228d23ec386f5fe4a34601536f0c891 Tue Jul 31 14:28:42 CEST 2018 Jorge Sanjuan <jorge.sanjuan@codethink.co.uk> ALSA: usb-audio: Initial Power Domain support

Thee USB Audio Class 3 (UAC3) introduces Power Domains as a new
feature to let a host turn individual parts of an audio function
to different power states via USB requests. This lets the device
get to know a bit amore about what the host is up to in order to
optimize power consumption efficiently.

The Power Domains are optional for UAC3 configuration but all
UAC3 devices shall include at least one BADD configuration where
the support for Power Domains is compulsory.

This patch adds a set of features/helpers to parse these power
domains and change their status.

Signed-off-by: Jorge Sanjuan <jorge.sanjuan@codethink.co.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
/linux/include/linux/usb/
H A Daudio-v3.hdiff 11785ef53228d23ec386f5fe4a34601536f0c891 Tue Jul 31 14:28:42 CEST 2018 Jorge Sanjuan <jorge.sanjuan@codethink.co.uk> ALSA: usb-audio: Initial Power Domain support

Thee USB Audio Class 3 (UAC3) introduces Power Domains as a new
feature to let a host turn individual parts of an audio function
to different power states via USB requests. This lets the device
get to know a bit amore about what the host is up to in order to
optimize power consumption efficiently.

The Power Domains are optional for UAC3 configuration but all
UAC3 devices shall include at least one BADD configuration where
the support for Power Domains is compulsory.

This patch adds a set of features/helpers to parse these power
domains and change their status.

Signed-off-by: Jorge Sanjuan <jorge.sanjuan@codethink.co.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>