Alexander - here comes the dmesg output you are looking for:
35.175855] usb 1-2: new high-speed USB device number 6 using xhci_hcd
[ 35.196647] usb 1-2: New USB device found, idVendor=15e4,
idProduct=8004, bcdDevice=11.10
[ 35.196649] usb 1-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 35.196650] usb 1-2: Product: DENON DJ MC7000
[ 35.196650] usb 1-2: Manufacturer: DENON DJ
[ 35.196651] usb 1-2: SerialNumber: 201603
[ 35.198291] usb 1-2: uac_clock_source_is_valid(): err: 1 ; data: 0
[ 35.198292] usb 1-2: clock source 65 is not valid, cannot use
[ 35.198370] usb 1-2: uac_clock_source_is_valid(): err: 1 ; data: 0
[ 35.199052] usb 1-2: uac_clock_source_is_valid(): err: 1 ; data: 0
[ 35.199053] usb 1-2: clock source 65 is not valid, cannot use
[ 35.199132] usb 1-2: uac_clock_source_is_valid(): err: 1 ; data: 0
...
...
repeated several 100 times.
Hope this is useful data for you.
Cheers!
Tobias
Am 07.02.20 um 20:11 schrieb Alexander Tsoy:
В Пт, 07/02/2020 в 19:49 +0100, Tobias пишет:
Dear Alexander - unfortunately the patch doesn't want to be applied.
It seems I copied it from less with different tab width. The patch
below should be OK.
$ patch -p1 < ../denon-4.patch
patching file sound/usb/clock.c
Hunk #1 FAILED at 187.
1 out of 1 hunk FAILED -- saving rejects to file
sound/usb/clock.c.rej
I guess it was not your intention only adding one line to
/sound/usb/clock.c. so what am I missing here?
No, it was intentional. This patch just adds printing of some info I
need in the following format:
uac_clock_source_is_valid(): err: X ; data: X
diff --git a/sound/usb/clock.c b/sound/usb/clock.c
index 018b1ecb5404..65ee5c24c5d1 100644
--- a/sound/usb/clock.c
+++ b/sound/usb/clock.c
@@ -187,6 +187,8 @@ static bool uac_clock_source_is_valid(struct snd_usb_audio *chip,
snd_usb_ctrl_intf(chip) | (source_id << 8),
&data, sizeof(data));
+ dev_info(&dev->dev, "%s(): err: %d ; data: %d\n", __func__, err, data);
+
if (err < 0) {
dev_warn(&dev->dev,
"%s(): cannot get clock validity for id %d\n",
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