ALSA: usb-audio - Cache mixer values
authorTakashi Iwai <tiwai@suse.de>
Thu, 15 Jan 2009 16:05:24 +0000 (17:05 +0100)
committerTakashi Iwai <tiwai@suse.de>
Thu, 15 Jan 2009 16:58:18 +0000 (17:58 +0100)
Cache mixer values in usb-audio driver to reduce too excessive
accesses to the hardware.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

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