Re: USBDMSC emulated device does not work on FreeBSD

On 11/12/21 12:18, Milan Obuch wrote:
> On Fri, 12 Nov 2021 12:11:38 +0100
> Hans Petter Selasky <hps@selasky.org> wrote:
> 
>> Hi,
>>
>>> kernel: ugen1.3: <Microchip Inc PolarFireSoc-FlashDrive> at usbus1
>>>
>>> line in console (and later in dmesg). Relevant line in output of
>>> 'usbconfig show_ifdrv' command is
>>>
>>> ugen1.3: <Microchip Inc PolarFireSoc-FlashDrive> at usbus1, cfg=255
>>> md=HOST spd=HIGH (480Mbps) pwr=ON (100mA)
>>
>> cfg=255 means something very low level USB failed. It was not able to
>> set the configuration number.
>>
>> Try:
>>
>> usbconfig -d ugen1.3 set_config 0
>>
>> --HPS
>>
> 
> I tried, basically no change (no output on console, no change in output
> of 'usbconfig show_ifdrv' command).
> 
> Also, I tried 'usbconfig -d ugen1.3 dump_all_desc' just out of
> curiosity, output is
> 
> ugen1.3: <Microchip Inc PolarFireSoc-FlashDrive> at usbus1, cfg=255 md=HOST spd=HIGH (480Mbps) pwr=ON (100mA)
> 
>    bLength = 0x0012
>    bDescriptorType = 0x0001
>    bcdUSB = 0x0200
>    bDeviceClass = 0x0000  <Probed by interface class>
>    bDeviceSubClass = 0x0000
>    bDeviceProtocol = 0x0000
>    bMaxPacketSize0 = 0x0008
>    idVendor = 0x1514
>    idProduct = 0x0001
>    bcdDevice = 0x3000
>    iManufacturer = 0x0001  <retrieving string failed>
>    iProduct = 0x0002  <retrieving string failed>
>    iSerialNumber = 0x0003  <retrieving string failed>
>    bNumConfigurations = 0x0001
> 

Hi,

I suspect the USB implementation in this device is buggy and not fully 
spec. compliant.

You may try to set the UQ_NO_STRINGS quirk on this device and re-plug:

usbconfig -d ugen1.3 add_quirk UQ_NO_STRINGS

Then physically re-plug the device.

--HPS