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Missing /dev/audioctl on Sun Blade 100 (Kernel 2.4.26)
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rsidler
n00b
n00b


Joined: 21 Jun 2004
Posts: 10

PostPosted: Wed Jun 30, 2004 12:40 pm    Post subject: Missing /dev/audioctl on Sun Blade 100 (Kernel 2.4.26) Reply with quote

Hi all,

Once again a post from my side. I hope, it will be the last for a looong
time!

Well, I'm running gentoo 2.4 with Kernel 2.4.26. I'm using the onboard
audio chip using the trident kernel module.

> lsmod
Module Size Used by Not tainted
trident 38264 0
ac97_codec 16736 0 [trident]
soundcore 4820 2 [trident]


Now, I want to configure the mixer using the audioctl tool.
audioctl always reports, that the device is missing. I tryed to create
device manually using the commands...

> mknod /dev/audioctl c 14 7
> chown root:audio /dev/audioctl
> chmod g+w /dev/audioctl
> ll /dev | grep audioctl
crw-rw-r-- 1 root audio 14, 7 Jun 30 14:13 audioctl

... but audioctl still complains about the missing device!

I also tried to use another device (audioctl -f /dev/sound/dsp) but
with no success (ioctl(getdev): Invalid argument)

I also had a look at this forum, but didn't find any reasonable answer
so far.

Has someone any idea to solve this issue?

Thanks very much for helping!

Kind regards,
Roman
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Weeve
Retired Dev
Retired Dev


Joined: 30 Oct 2002
Posts: 641

PostPosted: Wed Jun 30, 2004 2:27 pm    Post subject: Reply with quote

/dev/audioctl only exists for sound drives from the SPARC audio section in the 2.4 kernels rather than the regular OSS section. You may have to manually unplug the internal speaker in the Blade 100 to fix this issue unless a regular mixer application (like aumix) can adjust the speaker level.
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