27.04.2010 17:23, adelias пишет:
On 2/3/2010 8:35 μμ, Daniel Mack wrote:
On Tue, Mar 02, 2010 at 11:13:04AM +0200, adelias wrote:
Thanks to all involved for working on usb audio v2.
Last night I installed the 20100226 snapshot. I did a little testing with my XMOS board using toslink out into may DAC. I tried various files ranging 16bit/44110kHz-24bit/192000kHz. The 44110 files had quite a bit of static, the higher bitrate files were better. As you stated the sampling rate is not correct and be verified by looking at the flashing LEDs on the XMOS board. They should flash faster as sampling rate increase. In this case no change was observed.
Yes - this is all do be done. The sample rate setting is done with a different type of class request, which also addresses the interface now, unlike v1 devices which send that to the endpoint. But that's just one out of many differences that need to be addressed, and it's still a long way to go. I'm on it :)
Daniel
I upgraded alsa to 1.0.23. The XMOS device is working great with the exception of some mild clicks here and there. Is this a known issue or might it be a problem with my specific configuration?
Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
Perhaps I should've posted my problem in this thread earlier. Here's the summary: Creative X-Fi Notebook stopped working after upgrading from 1.0.22.1 to 1.0.23 (worked just fine before). dmesg gives the following:
usb 8-2: new full speed USB device using uhci_hcd and address 2 usb 8-2: New USB device found, idVendor=041e, idProduct=30d2 usb 8-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 usb 8-2: Product: SB X-Fi Notebook usb 8-2: Manufacturer: Creative Technology Ltd usb 8-2: configuration #1 chosen from 1 choice input: Creative Technology Ltd SB X-Fi Notebook as /devices/pci0000:00/0000:00:1d.2/usb8/8-2/8-2:1.3/input/input11 generic-usb 0003:041E:30D2.0002: input,hidraw1: USB HID v1.11 Device [Creative Technology Ltd SB X-Fi Notebook] on usb-0000:00:1d.2-2/input3 input: Creative Technology Ltd SB X-Fi Notebook as /devices/pci0000:00/0000:00:1d.2/usb8/8-2/8-2:1.4/input/input12 generic-usb 0003:041E:30D2.0003: input,hidraw2: USB HID v1.11 Keyboard [Creative Technology Ltd SB X-Fi Notebook] on usb-0000:00:1d.2-2/input4 ALSA pcm.c:174: 2:1:1: endpoint lacks sample rate attribute bit, cannot set. ALSA pcm.c:174: 2:2:1: endpoint lacks sample rate attribute bit, cannot set.
Additionally, modprobe never exits after connecting the device using 100% CPU and disrupting system's work.