From: Tim Harvey <tim_harvey@yahoo.com>
To: alsa-devel@alsa-project.org
Subject: driver mixer control questions
Date: Tue, 1 May 2007 21:40:25 -0700 (PDT) [thread overview]
Message-ID: <28050.16506.qm@web35607.mail.mud.yahoo.com> (raw)
I'm troubleshooting an issue with an ALSA driver I wrote for a very unique
hardware platform. In this case I have an audio codec which only has a usable
'line-in' capture source. Currently the only mixer control I've created is a
'Master Playback Volume'. Do I need to create some kind of control for
'line-in'?
I'm unclear how to 'register' capture inputs so that they will be returned by
the OSS mixer emulation's ioctl SOUND_MIXER_READ_RECMASK. Currently that ioctl
returns 0 for my mixer device.
Also, is a control 'switch' such as 'Master Playback Switch' simply a mute
control or is it intended to be any type of control which could have enumerated
values?
Thanks,
Tim
reply other threads:[~2007-05-02 4:40 UTC|newest]
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