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authorKay Sievers <kay.sievers@vrfy.org>2008-02-21 00:35:54 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2008-04-19 19:10:22 -0700
commit0c81eed4b9d6273124c7ab5eb99760b4d3a3cb9e (patch)
treeddc83231802e2f7061a2526855a3d5a4b00be5f6 /Documentation/video4linux/se401.txt
parent4b65fc8cfbd1d1cfcc78865af72608e3b6cc9d9b (diff)
PNP: add all PNP card device id's as individual aliases
The current PNP combined card + devices module aliase can never ever match anything, because these values are not available all at the same time to request a module. Instead of adding the combined alias, we add the device id's all as individual aliases. Device id's are exported by the PNP bus and can now properly used to request the loading of a matching module. The module snd-sbawe currently exports aliases, which can never match anything: alias: pnp:cCTLXXXXdCTL0045dCTL0022* alias: pnp:cCTLXXXXdCTL0044dCTL0023* alias: pnp:cCTLXXXXdCTL0042dCTL0022* alias: pnp:cCTLXXXXdCTL0041dCTL0021* alias: pnp:cCTLXXXXdCTL0031dCTL0021* alias: pnp:cCTL00eddCTL0041dCTL0070* alias: pnp:cCTL00e9dCTL0045dCTL0022* alias: pnp:cCTL00e4dCTL0045dCTL0022* alias: pnp:cCTL00c7dCTL0045dCTL0022* alias: pnp:cCTL00c5dCTL0045dCTL0022* alias: pnp:cCTL00c3dCTL0045dCTL0022* alias: pnp:cCTL00c1dCTL0042dCTL0022* alias: pnp:cCTL00b2dCTL0044dCTL0023* alias: pnp:cCTL009edCTL0044dCTL0023* alias: pnp:cCTL009ddCTL0042dCTL0022* alias: pnp:cCTL009fdCTL0041dCTL0021* alias: pnp:cCTL009cdCTL0041dCTL0021* alias: pnp:cCTL009adCTL0041dCTL0021* alias: pnp:cCTL0054dCTL0031dCTL0021* alias: pnp:cCTL0048dCTL0031dCTL0021* alias: pnp:cCTL0047dCTL0031dCTL0021* alias: pnp:cCTL0046dCTL0031dCTL0021* alias: pnp:cCTL0045dCTL0031dCTL0021* alias: pnp:cCTL0044dCTL0031dCTL0021* alias: pnp:cCTL0043dCTL0031dCTL0021* alias: pnp:cCTL0042dCTL0031dCTL0021* alias: pnp:cCTL0039dCTL0031dCTL0021* alias: pnp:cCTL0035dCTL0031dCTL0021* With this patch it exports only the device id's, as properly matchable aliases: alias: pnp:dCTL0070* alias: pnp:dCTL0045* alias: pnp:dCTL0023* alias: pnp:dCTL0044* alias: pnp:dCTL0022* alias: pnp:dCTL0042* alias: pnp:dCTL0041* alias: pnp:dCTL0021* alias: pnp:dCTL0031* Now, the exported value of the PNP bus can be used to autoload a matching module: $ modprobe --first-time -n -v pnp:dCTL0045 insmod /lib/modules/2.6.24-rc6-g5b825ed2-dirty/kernel/sound/core/snd-rawmidi.ko insmod /lib/modules/2.6.24-rc6-g5b825ed2-dirty/kernel/sound/drivers/mpu401/snd-mpu401-uart.ko insmod /lib/modules/2.6.24-rc6-g5b825ed2-dirty/kernel/sound/core/snd-hwdep.ko insmod /lib/modules/2.6.24-rc6-g5b825ed2-dirty/kernel/sound/isa/sb/snd-sb-common.ko insmod /lib/modules/2.6.24-rc6-g5b825ed2-dirty/kernel/sound/isa/sb/snd-sb16-csp.ko insmod /lib/modules/2.6.24-rc6-g5b825ed2-dirty/kernel/sound/isa/sb/snd-sb16-dsp.ko insmod /lib/modules/2.6.24-rc6-g5b825ed2-dirty/kernel/sound/drivers/opl3/snd-opl3-lib.ko insmod /lib/modules/2.6.24-rc6-g5b825ed2-dirty/kernel/sound/isa/sb/snd-sbawe.ko $ grep CTL0045 /sys/bus/pnp/devices/*/id /sys/bus/pnp/devices/01:01.00/id:CTL0045 Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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