Hi Takashi. v2 of the earlier today sent out "set" for snd-usb-6fire, although now only two patches left, incorportaing the requested changes. The snd-usb-6fire driver for the TerraTec DMX 6Fire USB soundcard has been failing its firmware upload due to a non DMA-capable buffer on the stack. First of the patches kmallocs said bufffer instead and fixes the firmware upload; also makes it more alsa-generic by using the "goto out" structure. Note that it only looks a bit ungeneric as a patch due to also needing to at the same time unify its failure path: it's obvious when looked at post-apply. After that first patch the driver nominally works again but still has Pulseaudio crap out due to struct snd_pcm_hardware.channels_min=1 causing it to recognize it as a mono device only. Comparing with e.g. the TerraTec Aureon 7.1 Universe driver it seems that the solution is to simply set channels_min=2 as per the second patch. With these changes the card works again. Driver author Torsten Schenk has seen these and is fine with them: maintains an external driver with more options. I or he might time permitting start integrating more into the kernel driver over time. Regards, René René Herman (2): Move DMA-buffer off the stack Pulseaudio needs snd_pcm_hardware.channels_min > 1 sound/usb/6fire/firmware.c | 95 ++++++++++++++++++-------------------- sound/usb/6fire/pcm.c | 2 +- 2 files changed, 47 insertions(+), 50 deletions(-) -- 2.17.1
