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authorTakashi Iwai <tiwai@suse.de>2009-01-16 18:15:22 +0100
committerTakashi Iwai <tiwai@suse.de>2009-03-09 14:56:19 +0100
commitf5b1db634280ecaf3147ee996f26aad0ed4828c4 (patch)
treece7ba0940e5dd3f106276d9119f7e7e3a3b0c7e6 /sound/ppc
parentfec6c6fec3e20637bee5d276fb61dd8b49a3f9cc (diff)
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ALSA: add snd_ctl_add_slave_uncached()
Added snd_ctl_add_slave_uncached() function to add a slave element with volatile controls. The values of normal slave elements are supposed to be cachable, i.e. they are changed only via the put callbacks. OTOH, when a slave element is volatile and its values may be changed by other reason (e.g. hardware status change), the values will get inconsistent. The new function allows the slave elements with volatile changes. When the slave is tied with this call, the native get callback is issued at each time so that the values are always updated. Signed-off-by: Takashi Iwai <tiwai@suse.de>
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