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Alexey Maslennikov posted |
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<200507090210.07611.alexey.maslennikov@×××××.com>, excerpted below, on |
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Sat, 09 Jul 2005 02:10:02 +0300: |
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> As far as I remember, /dev/dsp is only used with OSS. In case you use |
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> ALSA, it is created by OSS emulation. Possibly OSS emulation modules are |
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> not loaded. Module names are something like snd_*_oss. |
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> |
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> P.S. I can be very wrong about it. |
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(Without looking,) I believe you're quite right, actually, tho I never |
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track exactly which devices are ALSA and which are OSS, so you /might/ |
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have that reversed. |
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|
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I always run ALSA with OSS emulation in the kernel, so get both. With |
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Gentoo's default udev configuration, based on devfs, one set is created in |
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/dev/snd/, the other in /dev/sound/, with symlinks from /dev/ to the |
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devices in both subdirs as necessary, I just never remember which is OSS |
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and which is ALSA. If I had to, I'd look it up. The quickest way would |
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be to check the (commented) /etc/udev/rules.d/* file(s). The ALSA section |
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there is presented separately from the OSS section, so looking at that, |
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it's easy to figure out which is which. |
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As to whether they exist or not at any particular moment, that will depend |
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on several possible configuration details, such as whether you've compiled |
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the drivers as modules or built-in, and whether you have the alsa or |
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coldplug (or oss, for those not running alsa) initscripts set to run in |
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your current runlevel (also on whether you have the init set to use the |
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tarball or not, I have that turned off and the only devices in my static |
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/dev are /dev/null and /dev/console, if udev fails, so I'd know it |
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pretty fast!). Here, I don't run alsa at bootup, but I do run coldplug as |
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part of initlevel 2 (nonet, my default) and 3 (normal default). I have |
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the drivers compiled in, so coldplug triggers udev to load the device |
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nodes. I never /do/ run the alsa script, as what coldplug does is enough |
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to have sound in KDE/X, and I don't use it at the console if KDE/X isn't |
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running. |
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-- |
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Duncan - List replies preferred. No HTML msgs. |
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"Every nonfree program has a lord, a master -- |
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and if you use the program, he is your master." Richard Stallman in |
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http://www.linuxdevcenter.com/pub/a/linux/2004/12/22/rms_interview.html |
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-- |
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gentoo-amd64@g.o mailing list |
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