[lkml]   [2001]   [Jun]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectFinding out the name behind a /dev/dsp device
Dear LKML,

(Please CC your replies to me, since I'm not subscribed)

How can I find out the module name which handles a /dev/dsp* device
and/or the full name of the Sound Card I'd be addressing by it?

For /dev/mixer* devices, there's a SOUND_MIXER_INFO ioctl to retrieve
the Mixer chip name, but I couldn't find a similar call for /dev/dsp
devices. Parsing /etc/modules.conf doesn't seem correct, since a single
module can support multiple installed cards of the same type (thus
creating /dev/dsp entries for multiple cards), and since drivers can be
compiled statically.

This functionality is essential when building an application which
prompts the user to select a Sound Output Device from a list of
installed sound cards (avoiding exposing the user to a plain list of
dsp devices). Using the mixer chip's name isn't exactly friendly, and
still doesn't let you know which dsp device belongs to which mixer.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 12:55    [W:0.080 / U:0.424 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site