Re: Status of CM6631 USB

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Torstein, list:

On Wed, Apr 10, 2013 at 2:32 AM, Torstein Hegge <hegge@xxxxxxxxxxx> wrote:
[...]
> What does dmesg / /var/log/kern.log say when you plug in the device with
> the v3.9-rc6 kernel?

Hmm things are getting interesting.  Yesterday, when I had the problem
with missing altset 2, as far as I can remember, I had plugged in the
Schiit before booting and switched the Schiit to USB once booted.

Today below I booted the machine, switched the Schiit to usb input,
started up a terminal window, checked the kernel version, tailed the
/var/log/kern.log, plugged the Schiit in, then checked the
/proc/asound/Interface/stream0 file.

Despite the error messages when plugging, it seems I have altset 2 back!

clh@temuko:~$ uname -r
3.9.0-030900rc6-generic
clh@temuko:~$ tail -f /var/log/kern.log
Apr 10 08:08:39 temuko kernel: [   21.818692] 8139too 0000:02:03.0
eth0: link down
Apr 10 08:08:39 temuko kernel: [   21.818776] IPv6:
ADDRCONF(NETDEV_UP): eth0: link is not ready
Apr 10 08:08:44 temuko kernel: [   26.130144] wlan0: authenticate with
20:76:00:0d:dd:00
Apr 10 08:08:44 temuko kernel: [   26.135889] wlan0: send auth to
20:76:00:0d:dd:00 (try 1/3)
Apr 10 08:08:44 temuko kernel: [   26.137723] wlan0: authenticated
Apr 10 08:08:44 temuko kernel: [   26.138252] ath5k 0000:02:02.0
wlan0: disabling HT/VHT due to WEP/TKIP use
Apr 10 08:08:44 temuko kernel: [   26.140071] wlan0: associate with
20:76:00:0d:dd:00 (try 1/3)
Apr 10 08:08:44 temuko kernel: [   26.142175] wlan0: RX AssocResp from
20:76:00:0d:dd:00 (capab=0x411 status=0 aid=3)
Apr 10 08:08:44 temuko kernel: [   26.142630] wlan0: associated
Apr 10 08:08:44 temuko kernel: [   26.142702] IPv6:
ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready

(here I am plugging in the Schiit)

Apr 10 08:11:15 temuko kernel: [  177.148055] usb 1-3: new high-speed
USB device number 2 using ehci-pci
Apr 10 08:11:15 temuko kernel: [  177.305718] usb 1-3: config 1
interface 8 altsetting 0 bulk endpoint 0x1 has invalid maxpacket 64
Apr 10 08:11:15 temuko kernel: [  177.305731] usb 1-3: config 1
interface 8 altsetting 0 bulk endpoint 0x82 has invalid maxpacket 64
Apr 10 08:11:15 temuko kernel: [  177.308176] usb 1-3: New USB device
found, idVendor=0d8c, idProduct=0304
Apr 10 08:11:15 temuko kernel: [  177.308187] usb 1-3: New USB device
strings: Mfr=1, Product=2, SerialNumber=0
Apr 10 08:11:15 temuko kernel: [  177.308197] usb 1-3: Product: Schiit
USB Interface
Apr 10 08:11:15 temuko kernel: [  177.308206] usb 1-3: Manufacturer: CMEDIA
Apr 10 08:11:15 temuko kernel: [  177.694819] hidraw: raw HID events
driver (C) Jiri Kosina
Apr 10 08:11:15 temuko kernel: [  177.712517] 2:1:2: clock source 15
is not valid, cannot use
Apr 10 08:11:15 temuko kernel: [  177.743525] 2:2:2: clock source 16
is not valid, cannot use
Apr 10 08:11:15 temuko kernel: [  177.784388] 2:5:1: clock source 19
is not valid, cannot use
Apr 10 08:11:15 temuko kernel: [  177.788307] 2:5:2: clock source 19
is not valid, cannot use
Apr 10 08:11:15 temuko kernel: [  177.788858] cannot get ctl value:
req = 0x83, wValue = 0x201, wIndex = 0x0, type = 4
Apr 10 08:11:15 temuko kernel: [  177.791363] usbcore: registered new
interface driver snd-usb-audio
Apr 10 08:11:15 temuko kernel: [  177.849874] usbcore: registered new
interface driver usbhid
Apr 10 08:11:15 temuko kernel: [  177.849886] usbhid: USB HID core driver
Apr 10 08:11:15 temuko kernel: [  177.897234] input: CMEDIA Schiit USB
Interface as /devices/pci0000:00/0000:00:13.2/usb1/1-3/1-3:1.6/input/input7
Apr 10 08:11:15 temuko kernel: [  177.897944] hid-generic
0003:0D8C:0304.0001: input,hidraw0: USB HID v1.00 Device [CMEDIA
Schiit USB Interface] on usb-0000:00:13.2-3/input6

(ok that's all it's going to do I guess)

^C
clh@temuko:~$ ls /proc/asound/Interface
id  midi0  pcm0c  pcm0p  pcm1c  pcm1p  pcm2p  pcm3c  stream0  stream1
stream2  stream3  usbbus  usbid  usbmixer
clh@temuko:~$ cat !$/stream0
cat /proc/asound/Interface/stream0
CMEDIA Schiit USB Interface at usb-0000:00:13.2-3, high speed : USB Audio

Playback:
  Status: Stop
  Interface 1
    Altset 1
    Format: S16_LE
    Channels: 2
    Endpoint: 5 OUT (ASYNC)
    Rates: 44100, 48000, 88200, 96000, 192000
    Data packet interval: 125 us
  Interface 1
    Altset 2
    Format: S32_LE
    Channels: 2
    Endpoint: 5 OUT (ASYNC)
    Rates: 44100, 48000, 88200, 96000, 192000
    Data packet interval: 125 us

Capture:
  Status: Stop
  Interface 4
    Altset 1
    Format: S16_LE
    Channels: 2
    Endpoint: 8 IN (ASYNC)
    Rates: 44100, 48000, 88200, 96000, 192000
    Data packet interval: 125 us
  Interface 4
    Altset 2
    Format: S32_LE
    Channels: 2
    Endpoint: 8 IN (ASYNC)
    Rates: 44100, 48000, 88200, 96000, 192000
    Data packet interval: 125 us
clh@temuko:~$

I tried to replicate the same conditions as previously, ie plug before
boot, but now I seem to have the altset 2 back.

I tried playing a few tracks at different speeds / bit rates and all
seems fine now, ie the 24 bit files get converted to 32 bit and not 16
bit on altset 2.

It would be fantastic to consider this fixed but I'm a bit lost as to
how my altset disappeared for a session...
--
Chris Hermansen · clhermansen "at" gmail "dot" com

C'est ma façon de parler.

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