At Mon, 6 Oct 2008 10:58:57 +0100, Mark Brown wrote: > > On Sat, Oct 04, 2008 at 04:54:09PM -0700, Troy Kisky wrote: > > i.e. echo 6 59 >/sys/devices/platform/soc-audio.0/codec_reg > > will set register 0x06 to a value of 0x59 > > > Signed-off-by: Troy Kisky <troy.kisky@xxxxxxxxxxxxxxxxxxx> > > I'd probably take a patch to do this in debugfs but I don't think it is > appropriate to do this in sysfs. Writing to the registers outside the > control of the drivers can seriously interfere with their operation and > confuse user space - it's something you can get away with if you know > what you're doing but it's not something that should be available as a > standard, advertised interface. There's also the possibility of the > driver trampling over any settings made with this interface which > wouldn't be helpful either. Putting into debugfs sounds like a saner option, as this is only for debugging. OTOH, symmetrical read/write operations also good. Will be the sysfs register show op moved to debugfs, too? thanks, Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
