Re: USB-Audio regression on behringer UMC404HD

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On Wed, 4 Jan 2023 at 03:03, Takashi Iwai <tiwai@xxxxxxx> wrote:
>
> OK, thanks.  Then it's not about the USB interface reset.
> It must be subtle and nasty difference.
>
> Could you apply the change below on the top?
> It essentially reverts the hw_params/prepare split again.
>

Very sorry to say this still hasn't fixed the problem :(

Jan 04 06:05:12 leatherback kernel: mc: Linux media interface: v0.10
Jan 04 06:05:12 leatherback kernel: usb 1-3: Found last interface = 1
Jan 04 06:05:12 leatherback kernel: usb 1-4: Set quirk_flags 0x20010
for device 1397:0509
Jan 04 06:05:12 leatherback kernel: usb 1-4: Found last interface = 4
Jan 04 06:05:12 leatherback kernel: usb 1-4: 1:1: added playback
implicit_fb sync_ep 88, iface 2:1
Jan 04 06:05:12 leatherback kernel: usb 1-4: 1:1: add audio endpoint 0x8
Jan 04 06:05:12 leatherback kernel: usb 1-4: Creating new data endpoint #8
Jan 04 06:05:12 leatherback kernel: usb 1-4: Creating new data endpoint #88
Jan 04 06:05:12 leatherback kernel: usb 1-4: 2:1: add audio endpoint 0x88
Jan 04 06:05:12 leatherback kernel: usb 1-4: [10] FU [PCM Playback
Switch] ch = 4, val = 0/1/1
Jan 04 06:05:12 leatherback kernel: usb 1-4: [10] FU [PCM Playback
Switch] ch = 1, val = 0/1/1
Jan 04 06:05:12 leatherback kernel: usb 1-4: [10] FU [PCM Playback
Volume] ch = 4, val = -32512/0/256
Jan 04 06:05:12 leatherback kernel: usb 1-4: [10] FU [PCM Playback
Volume] ch = 1, val = -32512/0/256
Jan 04 06:05:12 leatherback kernel: usb 1-4: [11] FU [Mic Capture
Switch] ch = 4, val = 0/1/1
Jan 04 06:05:12 leatherback kernel: usb 1-4: [11] FU [Mic Capture
Switch] ch = 1, val = 0/1/1
Jan 04 06:05:12 leatherback kernel: usb 1-4: [11] FU [Mic Capture
Volume] ch = 4, val = -32512/0/256
Jan 04 06:05:12 leatherback kernel: usb 1-4: [11] FU [Mic Capture
Volume] ch = 1, val = -32512/0/256
Jan 04 06:05:12 leatherback kernel: usbcore: registered new interface
driver snd-usb-audio
Jan 04 06:06:07 leatherback kernel: usb 1-4: Open EP 0x8, iface=1:1, idx=0
Jan 04 06:06:07 leatherback kernel: usb 1-4:   channels=4, rate=48000,
format=S32_LE, period_bytes=96000, periods=4, implicit_fb=1
Jan 04 06:06:07 leatherback kernel: usb 1-4: Open EP 0x88, iface=2:1, idx=0
Jan 04 06:06:07 leatherback kernel: usb 1-4:   channels=4, rate=48000,
format=S32_LE, period_bytes=96000, periods=4, implicit_fb=0
Jan 04 06:06:07 leatherback kernel: usb 1-4: Setting params for data
EP 0x88, pipe 0x40580
Jan 04 06:06:07 leatherback kernel: usb 1-4: Set up 12 URBS, ret=0
Jan 04 06:06:07 leatherback kernel: usb 1-4: Setting params for data
EP 0x8, pipe 0x40500
Jan 04 06:06:07 leatherback kernel: usb 1-4: Set up 12 URBS, ret=0
Jan 04 06:06:07 leatherback kernel: usb 1-4: Setting usb interface 2:0
for EP 0x88
Jan 04 06:06:07 leatherback kernel: usb 1-4: 2:1 Set sample rate 48000, clock 40
Jan 04 06:06:07 leatherback kernel: usb 1-4: Setting usb interface 2:1
for EP 0x88
Jan 04 06:06:07 leatherback kernel: usb 1-4: Setting usb interface 1:0
for EP 0x8
Jan 04 06:06:07 leatherback kernel: usb 1-4: Setting usb interface 1:1
for EP 0x8
Jan 04 06:06:07 leatherback kernel: usb 1-4: Starting data EP 0x8 (running 0)
Jan 04 06:06:07 leatherback kernel: usb 1-4: 12 URBs submitted for EP 0x8
Jan 04 06:06:07 leatherback kernel: usb 1-4: Starting data EP 0x88 (running 0)
Jan 04 06:06:07 leatherback kernel: usb 1-4: 12 URBs submitted for EP 0x88
Jan 04 06:06:07 leatherback kernel: usb 1-4: 1:1 Start Playback PCM
Jan 04 06:06:30 leatherback kernel: usb 1-4: Stopping data EP 0x88 (running 1)
Jan 04 06:06:30 leatherback kernel: usb 1-4: Stopping data EP 0x8 (running 1)
Jan 04 06:06:30 leatherback kernel: usb 1-4: 1:1 Stop Playback PCM
Jan 04 06:06:30 leatherback kernel: usb 1-4: Closing EP 0x8 (count 1)
Jan 04 06:06:30 leatherback kernel: usb 1-4: Setting usb interface 1:0
for EP 0x8
Jan 04 06:06:30 leatherback kernel: usb 1-4: EP 0x8 closed
Jan 04 06:06:30 leatherback kernel: usb 1-4: Closing EP 0x88 (count 1)
Jan 04 06:06:30 leatherback kernel: usb 1-4: Setting usb interface 2:0
for EP 0x88
Jan 04 06:06:30 leatherback kernel: usb 1-4: EP 0x88 closed



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