Hello! I have cheap chinese usb audio card based on chip CM6206-LX dmesg shows me following: [ 3252.826326] usb 1-2: new full-speed USB device number 13 using xhci_hcd [ 3252.956008] usb 1-2: New USB device found, idVendor=0d8c, idProduct=0102 [ 3252.956013] usb 1-2: New USB device strings: Mfr=0, Product=2, SerialNumber=0 [ 3252.956015] usb 1-2: Product: USB Sound Device [ 3252.958799] usb 1-2: current rate 30464 is different from the runtime rate 96000 [ 3252.959955] usb 1-2: Warning! Unlikely big volume range (=8065), cval->res is probably wrong. [ 3252.959957] usb 1-2: [9] FU [Mic Playback Volume] ch = 2, val = -6144/1921/1 [ 3252.960311] usb 1-2: Warning! Unlikely big volume range (=8065), cval->res is probably wrong. [ 3252.960313] usb 1-2: [11] FU [Line Playback Volume] ch = 2, val = -6144/1921/1 [ 3252.961700] usb 1-2: Warning! Unlikely big volume range (=6928), cval->res is probably wrong. [ 3252.961702] usb 1-2: [8] FU [Mic Capture Volume] ch = 2, val = -4096/2832/1 [ 3252.962034] usb 1-2: Warning! Unlikely big volume range (=6928), cval->res is probably wrong. [ 3252.962036] usb 1-2: [15] FU [Line Capture Volume] ch = 2, val = -4096/2832/1 [ 3252.962441] usb 1-2: Warning! Unlikely big volume range (=6928), cval->res is probably wrong. [ 3252.962443] usb 1-2: [2] FU [PCM Capture Volume] ch = 2, val = -4096/2832/1 [ 3252.963374] input: USB Sound Device as /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.3/0003:0D8C:0102.0007/input/input24 [ 3253.018580] hid-generic 0003:0D8C:0102.0007: input,hidraw0: USB HID v1.00 Device [USB Sound Device ] on usb-0000:00:14.0-2/input3 As I understand I have tow kind of errors. First [ 3252.958799] usb 1-2: current rate 30464 is different from the runtime rate 96000 I don`t know what is it. Second error is not correct cval->res. As I understand there can be some quirks added to correct support cval->res. Like for some Logitech web cameras. Can anybody help me to fix these errors or at least show me point to start research about it. P.S. Also I have CM108 audio card, that doesn`t show any errors. As both chips are from CMEDIA maybe there is a chance that info about implementation UAC in one chip, can be used for another. -- Nikita Orlov Skype: nik_stet QQ: 2717846083 ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user