Re: [PATCH] ALSA: usb-audio: Disable quirks for BOSS Katana amplifiers

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Hi Mike,
I'm getting this:

[Oct14 18:21] snd_usb_audio:set_format: usb 1-4: setting usb interface 1:1
[  +0.000003] snd_usb_audio:snd_usb_add_endpoint: usb 1-4: Re-using EP d in
iface 1,1 @00000000d0aa6911
[  +0.000018] snd_usb_audio:snd_usb_endpoint_set_params: usb 1-4: Setting
params for ep #d (type 0, 3 urbs), ret=0
[  +0.000002] snd_usb_audio:start_endpoints: usb 1-4: Starting data EP
@00000000d0aa6911

Cheers,

Keith

On Wed, 14 Oct 2020 at 17:46, Mike Oliphant <oliphant@xxxxxxxxxxxx> wrote:

> Hi Keith,
>
> The lsusb output just shows that the endpoint is there, but not that it is
> getting connected when the device is initialized. Can you check dmesg
> output when you use the device for playback?
>
> This is what I see from dmesg when the implicit feedback endpoint is being
> used:
>
> [   26.787360] usb 1-1.1: setting usb interface 1:1
> [   26.787367] Creating new playback data endpoint #d
> [   26.787375] Creating new capture data endpoint #8e
> [   26.787678] usb 1-1.1: Setting params for ep #d (type 0, 12 urbs), ret=0
> [   26.787685] usb 1-1.1: match_endpoint_audioformats: (fmt @6bc43c84)
> score 2
> [   26.787745] usb 1-1.1: Setting params for ep #8e (type 0, 12 urbs),
> ret=0
> [   26.787751] usb 1-1.1: Starting data EP @a14130b5
> [   26.788420] usb 1-1.1: Starting sync EP @720fb7cf
>
> Note the "Starting sync EP".
>
> Mike
>
> On Wed, Oct 14, 2020 at 9:35 AM Mailing Lists <maillist@xxxxxxxxxxxxxxx>
> wrote:
>
>> On Wed, 14 Oct 2020 at 17:12, Mike Oliphant <oliphant@xxxxxxxxxxxx>
>> wrote:
>>
>>> Keith - are you getting an implicit feedback endpoint created when you
>>> run with the patch?
>>>
>>
>> Hi Mike,
>>
>> It appears that I do. For reference I'm on kernel 5.4.0-51:
>>
>> Bus 001 Device 007: ID 0582:01d6 Roland Corp. GT-1
>> Device Descriptor:
>>  bLength                18
>>  bDescriptorType         1
>>  bcdUSB               2.00
>>  bDeviceClass          255 Vendor Specific Class
>>  bDeviceSubClass         0
>>  bDeviceProtocol       255
>>  bMaxPacketSize0        64
>>  idVendor           0x0582 Roland Corp.
>>  idProduct          0x01d6
>>  bcdDevice            0.00
>>  iManufacturer           1 BOSS
>>  iProduct                2 GT-1
>>  iSerial                 0
>>  bNumConfigurations      1
>>  Configuration Descriptor:
>>    bLength                 9
>>    bDescriptorType         2
>>    wTotalLength       0x00bc
>>    bNumInterfaces          4
>>    bConfigurationValue     1
>>    iConfiguration          0
>>    bmAttributes         0xc0
>>      Self Powered
>>    MaxPower                0mA
>>    Interface Descriptor:
>>      bLength                 9
>>      bDescriptorType         4
>>      bInterfaceNumber        0
>>      bAlternateSetting       0
>>      bNumEndpoints           0
>>      bInterfaceClass       255 Vendor Specific Class
>>      bInterfaceSubClass    255 Vendor Specific Subclass
>>      bInterfaceProtocol      0
>>      iInterface              0
>>    Interface Descriptor:
>>      bLength                 9
>>      bDescriptorType         4
>>      bInterfaceNumber        1
>>      bAlternateSetting       0
>>      bNumEndpoints           0
>>      bInterfaceClass       255 Vendor Specific Class
>>      bInterfaceSubClass      2
>>      bInterfaceProtocol      2
>>      iInterface              0
>>      ** UNRECOGNIZED:  06 24 f1 01 00 00
>>    Interface Descriptor:
>>      bLength                 9
>>      bDescriptorType         4
>>      bInterfaceNumber        1
>>      bAlternateSetting       1
>>      bNumEndpoints           1
>>      bInterfaceClass       255 Vendor Specific Class
>>      bInterfaceSubClass      2
>>      bInterfaceProtocol      2
>>      iInterface              0
>>      ** UNRECOGNIZED:  07 24 01 01 00 01 00
>>      ** UNRECOGNIZED:  0b 24 02 01 02 04 18 01 44 ac 00
>>      ** UNRECOGNIZED:  06 24 f1 04 16 00
>>      Endpoint Descriptor:
>>        bLength                 7
>>        bDescriptorType         5
>>        bEndpointAddress     0x0d  EP 13 OUT
>>        bmAttributes            5
>>          Transfer Type            Isochronous
>>          Synch Type               Asynchronous
>>          Usage Type               Data
>>        wMaxPacketSize     0x0038  1x 56 bytes
>>        bInterval               1
>>    Interface Descriptor:
>>      bLength                 9
>>      bDescriptorType         4
>>      bInterfaceNumber        2
>>      bAlternateSetting       0
>>      bNumEndpoints           0
>>      bInterfaceClass       255 Vendor Specific Class
>>      bInterfaceSubClass      2
>>      bInterfaceProtocol      1
>>      iInterface              0
>>    Interface Descriptor:
>>      bLength                 9
>>      bDescriptorType         4
>>      bInterfaceNumber        2
>>      bAlternateSetting       1
>>      bNumEndpoints           1
>>      bInterfaceClass       255 Vendor Specific Class
>>      bInterfaceSubClass      2
>>      bInterfaceProtocol      1
>>      iInterface              0
>>      ** UNRECOGNIZED:  07 24 01 07 00 01 00
>>      ** UNRECOGNIZED:  0b 24 02 01 02 04 18 01 44 ac 00
>>      ** UNRECOGNIZED:  06 24 f1 04 16 00
>>      Endpoint Descriptor:
>>        bLength                 7
>>        bDescriptorType         5
>>        bEndpointAddress     0x8e  EP 14 IN
>>        bmAttributes           37
>>          Transfer Type            Isochronous
>>          Synch Type               Asynchronous
>>          Usage Type               Implicit feedback Data
>>        wMaxPacketSize     0x0038  1x 56 bytes
>>        bInterval               1
>>    Interface Descriptor:
>>      bLength                 9
>>      bDescriptorType         4
>>      bInterfaceNumber        3
>>      bAlternateSetting       0
>>      bNumEndpoints           2
>>      bInterfaceClass       255 Vendor Specific Class
>>      bInterfaceSubClass      3
>>      bInterfaceProtocol      0
>>      iInterface              0
>>      ** UNRECOGNIZED:  06 24 f1 02 01 01
>>      Endpoint Descriptor:
>>        bLength                 7
>>        bDescriptorType         5
>>        bEndpointAddress     0x03  EP 3 OUT
>>        bmAttributes            2
>>          Transfer Type            Bulk
>>          Synch Type               None
>>          Usage Type               Data
>>        wMaxPacketSize     0x0200  1x 512 bytes
>>        bInterval               1
>>      Endpoint Descriptor:
>>        bLength                 7
>>        bDescriptorType         5
>>        bEndpointAddress     0x84  EP 4 IN
>>        bmAttributes            2
>>          Transfer Type            Bulk
>>          Synch Type               None
>>          Usage Type               Data
>>        wMaxPacketSize     0x0200  1x 512 bytes
>>        bInterval               0
>>    Interface Descriptor:
>>      bLength                 9
>>      bDescriptorType         4
>>      bInterfaceNumber        3
>>      bAlternateSetting       1
>>      bNumEndpoints           2
>>      bInterfaceClass       255 Vendor Specific Class
>>      bInterfaceSubClass      3
>>      bInterfaceProtocol      0
>>      iInterface              0
>>      Endpoint Descriptor:
>>        bLength                 7
>>        bDescriptorType         5
>>        bEndpointAddress     0x03  EP 3 OUT
>>        bmAttributes            3
>>          Transfer Type            Interrupt
>>          Synch Type               None
>>          Usage Type               Data
>>        wMaxPacketSize     0x0200  1x 512 bytes
>>        bInterval               4
>>      Endpoint Descriptor:
>>        bLength                 7
>>        bDescriptorType         5
>>        bEndpointAddress     0x85  EP 5 IN
>>        bmAttributes            3
>>          Transfer Type            Interrupt
>>          Synch Type               None
>>          Usage Type               Data
>>        wMaxPacketSize     0x0200  1x 512 bytes
>>        bInterval               4
>> Device Qualifier (for other device speed):
>>  bLength                10
>>  bDescriptorType         6
>>  bcdUSB               2.00
>>  bDeviceClass          255 Vendor Specific Class
>>  bDeviceSubClass         0
>>  bDeviceProtocol       255
>>  bMaxPacketSize0        64
>>  bNumConfigurations      1
>> can't get debug descriptor: Resource temporarily unavailable
>> Device Status:     0x0001
>>  Self Powered
>>
>>
>> --
>> Keith A Milner
>>
>

-- 
-- 
Keith A Milner



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