On Mon, Jul 12, 2010 at 4:18 AM, Jean-Francois Moine <moinejf@xxxxxxx> wrote: > The video capture is started in sd_start(). Checking all sequences > again, I found that the GPIO is also set near line 1752. May you comment > it and test? I tested this and it did not show any different results. > Otherwise, here is a way to know the exact bad USB exchange. [snip] > After installation, connect the webcam and set the gspca debug level to > 0xcf: > echo 0xcf > /sys/module/gspca_main/parameters/debug I'm unable to set the debug level due to the following error: bash: /sys/module/gspca_main/parameters/debug: Permission denied I even tried as sudo. The debug file contents are "3" with no quotes at runtime. I worked around this by changing "PDEBUG(D_USBO, ..." to "PDEBUG(D_PROBE, ..." and I think I've found the exact point that the microphone is cut off. > Check if the webcam microphone is working, and look at the kernel > messages by: > tail -f /var/log/messages Microphone is working at this point still with no unusual messages. > Then, start the video capture. You should see each USB exchange in the > 'tail' window. When the audio stops, the bad exchange is the one just > printed... > > If the audio stopped before any exchange, this could mean that something > went wrong when setting the alternate setting or on URB creation. This didn't appear to be the case. I tested it 5-6 times to verify that I saw the correct line. Here is the exchange from plugging in my webcam until I quit Cheese. The point that the mic quits is at "[ 224.692515] sonixj-2.9.51: reg_w1 [0002] = 62" as far as I can tell. I hope this sheds some light on the issue. Repeating this several times appears to show the same values each time, so it may be a GPIO setting that is incorrect. I don't understand the driver code as intricately as you. Jul 12 05:03:47 kyleabaker-desktop kernel: [ 117.600025] usb 2-10: new full speed USB device using ohci_hcd and address 4 Jul 12 05:03:47 kyleabaker-desktop kernel: [ 117.832495] Linux video capture interface: v2.00 Jul 12 05:03:47 kyleabaker-desktop kernel: [ 117.835301] gspca: main v2.9.0 registered Jul 12 05:03:47 kyleabaker-desktop kernel: [ 117.836042] gspca-2.9.51: probing 045e:00f7 Jul 12 05:03:48 kyleabaker-desktop kernel: [ 118.840036] sonixj-2.9.51: reg_w1 [00f1] = 01 Jul 12 05:03:49 kyleabaker-desktop kernel: [ 119.850013] sonixj-2.9.51: reg_w1 [00f1] = 00 Jul 12 05:03:49 kyleabaker-desktop kernel: [ 119.854147] sonixj-2.9.51: Sonix chip id: 11 Jul 12 05:03:50 kyleabaker-desktop kernel: [ 120.860022] sonixj-2.9.51: reg_w [0001] = 29 74 .. Jul 12 05:03:51 kyleabaker-desktop kernel: [ 121.872517] sonixj-2.9.51: reg_w1 [00f1] = 00 Jul 12 05:03:51 kyleabaker-desktop kernel: [ 121.874230] input: sonixj as /devices/pci0000:00/0000:00:02.0/usb2/2-10/input/input4 Jul 12 05:03:51 kyleabaker-desktop kernel: [ 121.874315] gspca-2.9.51: video0 created Jul 12 05:03:51 kyleabaker-desktop kernel: [ 121.874318] gspca-2.9.51: found int in endpoint: 0x83, buffer_len=1, interval=100 Jul 12 05:03:51 kyleabaker-desktop kernel: [ 121.874337] gspca-2.9.51: 045e:00f7 bad interface 1 Jul 12 05:03:51 kyleabaker-desktop kernel: [ 121.874345] gspca-2.9.51: 045e:00f7 bad interface 2 Jul 12 05:03:51 kyleabaker-desktop kernel: [ 121.874361] usbcore: registered new interface driver sonixj Jul 12 05:03:51 kyleabaker-desktop kernel: [ 121.874363] sonixj: registered Jul 12 05:03:51 kyleabaker-desktop kernel: [ 121.970290] usbcore: registered new interface driver snd-usb-audio Jul 12 05:05:22 kyleabaker-desktop kernel: [ 212.443063] gspca-2.9.51: found int in endpoint: 0x83, buffer_len=1, interval=100 Jul 12 05:05:23 kyleabaker-desktop kernel: [ 213.450017] sonixj-2.9.51: reg_w1 [0001] = 61 Jul 12 05:05:24 kyleabaker-desktop kernel: [ 214.460030] sonixj-2.9.51: reg_w [0001] = 61 44 .. Jul 12 05:05:25 kyleabaker-desktop kernel: [ 215.472516] sonixj-2.9.51: reg_w [0008] = 81 21 .. Jul 12 05:05:26 kyleabaker-desktop kernel: [ 216.480018] sonixj-2.9.51: reg_w [0017] = 20 07 .. Jul 12 05:05:27 kyleabaker-desktop kernel: [ 217.490018] sonixj-2.9.51: reg_w [009a] = 00 40 .. Jul 12 05:05:28 kyleabaker-desktop kernel: [ 218.500019] sonixj-2.9.51: reg_w [00d4] = 60 00 .. Jul 12 05:05:29 kyleabaker-desktop kernel: [ 219.518667] sonixj-2.9.51: reg_w [0003] = 00 1a .. Jul 12 05:05:30 kyleabaker-desktop kernel: [ 220.532524] sonixj-2.9.51: reg_w1 [0001] = 63 Jul 12 05:05:31 kyleabaker-desktop kernel: [ 221.542516] sonixj-2.9.51: reg_w1 [0017] = 20 Jul 12 05:05:32 kyleabaker-desktop kernel: [ 222.559770] sonixj-2.9.51: reg_w1 [0001] = 62 Jul 12 05:05:33 kyleabaker-desktop kernel: [ 223.570016] sonixj-2.9.51: reg_w1 [0001] = 42 Jul 12 05:05:34 kyleabaker-desktop kernel: [ 224.692515] sonixj-2.9.51: reg_w1 [0002] = 62 Jul 12 05:05:36 kyleabaker-desktop kernel: [ 226.690016] sonixj-2.9.51: reg_w1 [0002] = 40 Jul 12 05:05:37 kyleabaker-desktop kernel: [ 227.700014] sonixj-2.9.51: reg_w1 [0002] = 40 Jul 12 05:05:38 kyleabaker-desktop kernel: [ 228.720016] sonixj-2.9.51: reg_w1 [0015] = 28 Jul 12 05:05:39 kyleabaker-desktop kernel: [ 229.730020] sonixj-2.9.51: reg_w1 [0016] = 1e Jul 12 05:05:40 kyleabaker-desktop kernel: [ 230.742519] sonixj-2.9.51: reg_w1 [0012] = 01 Jul 12 05:05:41 kyleabaker-desktop kernel: [ 231.750015] sonixj-2.9.51: reg_w1 [0013] = 01 Jul 12 05:05:42 kyleabaker-desktop kernel: [ 232.760073] sonixj-2.9.51: reg_w1 [0018] = 07 Jul 12 05:05:43 kyleabaker-desktop kernel: [ 233.770014] sonixj-2.9.51: reg_w1 [00d2] = 6a Jul 12 05:05:44 kyleabaker-desktop kernel: [ 234.790030] sonixj-2.9.51: reg_w1 [00d3] = 50 Jul 12 05:05:45 kyleabaker-desktop kernel: [ 235.792515] sonixj-2.9.51: reg_w1 [00c6] = 00 Jul 12 05:05:46 kyleabaker-desktop kernel: [ 236.802516] sonixj-2.9.51: reg_w1 [00c7] = 00 Jul 12 05:05:47 kyleabaker-desktop kernel: [ 237.810018] sonixj-2.9.51: reg_w1 [00c8] = 50 Jul 12 05:05:48 kyleabaker-desktop kernel: [ 238.830014] sonixj-2.9.51: reg_w1 [00c9] = 3c Jul 12 05:05:49 kyleabaker-desktop kernel: [ 239.832516] sonixj-2.9.51: reg_w1 [0018] = 07 Jul 12 05:05:50 kyleabaker-desktop kernel: [ 240.840017] sonixj-2.9.51: reg_w1 [0017] = a0 Jul 12 05:05:51 kyleabaker-desktop kernel: [ 241.850068] sonixj-2.9.51: reg_w1 [0005] = 00 Jul 12 05:05:52 kyleabaker-desktop kernel: [ 242.860017] sonixj-2.9.51: reg_w1 [0007] = 00 Jul 12 05:05:53 kyleabaker-desktop kernel: [ 243.870016] sonixj-2.9.51: reg_w1 [0006] = 00 Jul 12 05:05:54 kyleabaker-desktop kernel: [ 244.880016] sonixj-2.9.51: reg_w1 [0014] = 08 Jul 12 05:05:55 kyleabaker-desktop kernel: [ 245.890305] sonixj-2.9.51: reg_w [0020] = 00 2d .. Jul 12 05:05:56 kyleabaker-desktop kernel: [ 246.900017] sonixj-2.9.51: reg_w [0084] = 14 00 .. Jul 12 05:05:57 kyleabaker-desktop kernel: [ 247.910015] sonixj-2.9.51: reg_w [0084] = 14 00 .. Jul 12 05:05:58 kyleabaker-desktop kernel: [ 248.920015] sonixj-2.9.51: reg_w [0084] = 14 00 .. Jul 12 05:05:59 kyleabaker-desktop kernel: [ 249.940014] sonixj-2.9.51: reg_w [0084] = 14 00 .. Jul 12 05:06:00 kyleabaker-desktop kernel: [ 250.950019] sonixj-2.9.51: reg_w [0084] = 14 00 .. Jul 12 05:06:01 kyleabaker-desktop kernel: [ 251.960015] sonixj-2.9.51: reg_w [0084] = 14 00 .. Jul 12 05:06:02 kyleabaker-desktop kernel: [ 252.970014] sonixj-2.9.51: reg_w [0084] = 14 00 .. Jul 12 05:06:03 kyleabaker-desktop kernel: [ 253.980306] sonixj-2.9.51: reg_w [0084] = 14 00 .. Jul 12 05:06:04 kyleabaker-desktop kernel: [ 254.997213] sonixj-2.9.51: reg_w1 [009a] = 05 Jul 12 05:06:05 kyleabaker-desktop kernel: [ 256.000020] sonixj-2.9.51: reg_w1 [0099] = 5a Jul 12 05:06:06 kyleabaker-desktop kernel: [ 257.010014] sonixj-2.9.51: reg_w [0084] = 14 00 .. Jul 12 05:06:07 kyleabaker-desktop kernel: [ 258.026869] sonixj-2.9.51: reg_w1 [0005] = 20 Jul 12 05:06:08 kyleabaker-desktop kernel: [ 259.030015] sonixj-2.9.51: reg_w1 [0007] = 20 Jul 12 05:06:09 kyleabaker-desktop kernel: [ 260.050023] sonixj-2.9.51: reg_w1 [0006] = 20 Jul 12 05:06:11 kyleabaker-desktop kernel: [ 261.400021] sonixj-2.9.51: reg_w [00c0] = 2d 2d .. Jul 12 05:06:12 kyleabaker-desktop kernel: [ 262.410019] sonixj-2.9.51: reg_w [00ca] = 28 d8 .. Jul 12 05:06:13 kyleabaker-desktop kernel: [ 263.420015] sonixj-2.9.51: reg_w [00ce] = 32 dd .. Jul 12 05:06:14 kyleabaker-desktop kernel: [ 264.430016] sonixj-2.9.51: reg_w1 [0018] = 47 Jul 12 05:06:15 kyleabaker-desktop kernel: [ 265.442517] sonixj-2.9.51: reg_w1 [0018] = 07 Jul 12 05:06:16 kyleabaker-desktop kernel: [ 266.450016] sonixj-2.9.51: reg_w1 [0017] = 22 Jul 12 05:06:17 kyleabaker-desktop kernel: [ 267.460025] sonixj-2.9.51: reg_w1 [0001] = 06 Jul 12 05:06:18 kyleabaker-desktop kernel: [ 268.470016] sonixj-2.9.51: reg_w1 [0096] = 00 Jul 12 05:06:19 kyleabaker-desktop kernel: [ 269.480018] sonixj-2.9.51: reg_w [0084] = 14 00 .. Jul 12 05:06:20 kyleabaker-desktop kernel: [ 270.497626] sonixj-2.9.51: reg_w [008a] = e8 0f .. Jul 12 05:06:21 kyleabaker-desktop kernel: [ 271.602523] sonixj-2.9.51: reg_w1 [0001] = 61 Jul 12 05:06:22 kyleabaker-desktop kernel: [ 272.612517] sonixj-2.9.51: reg_w1 [0017] = 20 Jul 12 05:06:23 kyleabaker-desktop kernel: [ 273.620018] sonixj-2.9.51: reg_w1 [0001] = 61 Jul 12 05:06:24 kyleabaker-desktop kernel: [ 274.640013] sonixj-2.9.51: reg_w1 [0001] = 0b Jul 12 05:06:24 kyleabaker-desktop kernel: [ 274.644749] gspca-2.9.51: found int in endpoint: 0x83, buffer_len=1, interval=100 > BTW, your webcam is connected to a USB 1.1 port with the driver > ohci_hcd. Have you some USB 2.0 port that you could use? I know my computer has USB 2.0 ports, but they all seem to be falling back to 1.1 (if thats what you're seeing them as). I understand the bandwidth is greater in USB 2.0, but are there other problems that would be causing this? Thanks, I think we may be getting somewhere now. -- Kyle Baker -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
