Re: USBDMSC emulated device does not work on FreeBSD

[Hans Petter Selasky]

On 11/12/21 12:18, Milan Obuch wrote:
On Fri, 12 Nov 2021 12:11:38 +0100
Hans Petter Selasky <h...@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