Re: [9fans] kw audio -- /dev/audio and friends

[Tristan Plumb <9p-st@imu.li>]

>> multiple inputs or outputs? if so, my first pass would be do something
>> like what #l does: #l0, #l1, &c.
> Wouldn't it be better to use #A0, #A1, ... for the case of multiple
> audio devices instead of multiple in/outs in one device?
that would make sense to me, though if there's a ethernet card that had
multiple interfaces in an analogous way, #l0, #l1 would probably be used.

> I don't see why control^(1 2 3 4 5 6) or in1, out1 are so ugly
> (specially considering that this is just a potential "problem").
the cs42l51 (the codec used on the openrd) audioctl looks like this:

power in 1 0 1
pgapower in 1 0 1
boost in 0 0 1
micdiff in 0 0 1
micbias in 0 0 3 1
micboost0 in 0 0 1
micboost1 in 0 0 1
gain0 in 0 -6 24 1
gain1 in 0 -6 24 1
atten0 in 0 -96 0 1
atten1 in 0 -96 0 1
vol0 in 0 -103 24 1
vol1 in 0 -103 24 1
mute0 in 0 0 1
mute1 in 0 0 1
power out 1 0 1
hpgain out 3 0 7 1
vol0 out 0 -103 24 1
vol1 out 0 -103 24 1
mute0 out 0 0 1
mute1 out 0 0 1
treble out 0 -21 24 1
bass out 0 -21 24 1
volume0 out 0 -204 12 1
volume1 out 0 -204 12 1
mix0 out 0 0 3
mix1 out 0 0 3

with my current incarnation that becomes:
audictl:
power 0 1 1
pgapower 0 1 1
boost 0 1 0
micdiff 0 1 0
micbias 0 1 0
micboost 0 1 0 0
gain -6 24 0 0
atten -96 0 0 0
vol -103 24 0 0
mute 0 1 0 0

audoctl:
power 0 1 1
hpgain 0 7 3
vol -103 24 0 0
mute 0 1 0 0
treble -21 24 0
bass -21 24 0
volume -204 12 0 0
mix 0 3 0 0

to me, that is ugly, without in1 and out1. ugly enough to talk about
change, maybe not ugly enough to change.

volume is fairly nice: (except with percentages of the range)

power in 1 out 1
pgapower in 1
boost in 0
micdiff in 0
micbias in 0
micboost in 0 0
hpgain out 3
gain in 0 0
atten in 0 0
vol in 0 0 out 0 0
mute in 0 0 out 0 0
treble out 0
bass out 0
volume out 0 0
mix out 0 0

and easially extendable:
vol in 0 0 0 0 0 0 out 0 0 0 0 0 0 out1 0 0 0 0 0 0

but it doesn't give the ranges.

? vol -103 24 in 0 0 out 0 0

which looks liable to break things (out being optional).

tristan
(with apologies for such a long post)

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