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2010-05-31ALSA: usb-audio: UAC2: clean up parsing of bmaControlsDaniel Mack
Introduce two new static inline functions for a more readable parsing of UAC2 bmaControls. Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-05-28ALSA: usb-audio: fix feature unit parser for UAC2Daniel Mack
Fix a small off-by-one bug which causes the feature unit to announce a wrong number of channels. This leads to illegal requests sent to the firmware eventually. Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-05-20Merge branch 'topic/usb' into for-linusTakashi Iwai
2010-05-11ALSA: sound/usb: add preliminary support for UAC2 interruptsDaniel Mack
For both UAC1 and UAC2, interrupt endpoint messages are now parsed with structs rather that with anonymous buffer array accesses. For UAC2, only CUR interrupt notifications are supported for now. snd_usb_mixer_status_complete() was renamed to snd_usb_mixer_interrupt(). Fixed one indentation flaw on the way. Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-05-08ALSA: sound/usb: fix UAC1 regressionDaniel Mack
Commit 23caaf19b ("ALSA: usb-mixer: Add support for Audio Class v2.0") broke support for Class1 devices due to two faulty changes. This patch fixes it. Signed-off-by: Daniel Mack <daniel@caiaq.de> Reported-and-Tested-by: The Source <thesourcehim@gmail.com> Cc: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-04-16ALSA: usb/mixer - use get_iface_desc() rather than direct structureJaroslav Kysela
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2010-03-12ALSA: usb-mixer: Add support for Audio Class v2.0Daniel Mack
USB Audio Class v2.0 compliant devices have different descriptors and a different way of setting/getting min/max/res/cur properties. This patch adds support for them. Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-12ALSA: usb-mixer: parse descriptors with structsDaniel Mack
Introduce a number of new structs for mixer, selector, feature and processing units and some static inline helpers to access fields which have dynamic offsets. Use them in mixer.c to parse the descriptors. This is necessary for the upcoming audio v2 parsers. Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-12ALSA: usbmixer: rename usbmixer.[ch] -> mixer.[ch]Daniel Mack
For clearer namespace, also rename usbmixer_maps.c -> mixer_maps.c Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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