SND_AC97_PCM_ASSIGN(9) Control/Mixer API SND_AC97_PCM_ASSIGN(9)NAME
snd_ac97_pcm_assign - assign AC97 slots to given PCM streams
SYNOPSIS
int snd_ac97_pcm_assign(struct snd_ac97_bus * bus, unsigned short pcms_count, const struct ac97_pcm * pcms);
ARGUMENTS
bus
the ac97 bus instance
pcms_count
count of PCMs to be assigned
pcms
PCMs to be assigned
DESCRIPTION
It assigns available AC97 slots for given PCMs. If none or only some slots are available, pcm->xxx.slots and pcm->xxx.rslots[] members are
reduced and might be zero.
RETURN
Zero if successful, or a negative error code on failure.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 SND_AC97_PCM_ASSIGN(9)
Check Out this Related Man Page
AC97(4) BSD Kernel Interfaces Manual AC97(4)NAME
ac97 -- generic AC97 codec driver
DESCRIPTION
AC97 codecs contain the analog-to-digital (A/D), digital-to-analog (D/A), and mixing circuitry of many modern sound cards. AC97 codecs, for
the most part, do not talk to host busses like the PCI bus directly. Instead, they communicate through an interface chip, called the host
controller. The Ensoniq AudioPCI 97 (see eap(4)) is an example of such a host controller.
Unlike many drivers, the ac97 driver does not appear in the configuration file. Instead, the driver is automatically attached by the drivers
that require it.
SEE ALSO auacer(4), auich(4), auixp(4), autri(4), auvia(4), clcs(4), clct(4), eap(4), emuxki(4), esa(4), esm(4), fms(4), neo(4), yds(4)BUGS
The ac97 driver does not keep track of the current user settings and instead relies on the hardware to do this.
The ac97 driver could do more to detect mixer channels that don't work and cull them from the list.
BSD October 7, 1999 BSD
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