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| author | Adrian Knoth <adi@drcomp.erfurt.thur.de> | 2012-01-10 20:58:40 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2012-01-11 08:55:58 +0100 |
| commit | f7de8ba3fcf19487d2f0af9aee0c510fc79efa15 (patch) | |
| tree | 422003d6891ef94c6a2c57de625f3dbc8f24c97c /block/blk-core.c | |
| parent | 74eeb141d3bdf5a9a65c84dd637c41f12c40f41c (diff) | |
| download | linux-f7de8ba3fcf19487d2f0af9aee0c510fc79efa15.tar.bz2 | |
ALSA: hdspm - Provide unique driver id based on card serial
Before, /proc/asound looked like this:
2 [Default ]: HDSPM - RME RayDAT_f1cd85
RME RayDAT S/N 0xf1cd85 at 0xf7300000, irq 18
In case of a second HDSPM card, its name would be Default_1. This is
cumbersome, because the order of the cards isn't stable across reboots.
To help userspace tools referring to the correct card, this commit
provides a unique id for each card:
2 [HDSPMxf1cd85 ]: HDSPM - RME RayDAT_f1cd85
RME RayDAT S/N 0xf1cd85 at 0xf7300000, irq 18
In this example, userspace (configuration files) would then use
hw:HDSPMxf1cd85 to choose the right card.
The serial is masked to 24bits, so this string is always shorter than
sixteen chars.
Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'block/blk-core.c')
0 files changed, 0 insertions, 0 deletions