usb2 + scanner HP ScanJet 4300C

[Hans Petter Selasky]

On Friday 19 December 2008, Oliver Fromme wrote:
> Hans Petter Selasky wrote:
>  > Nick Hibma wrote:
>  > > The uscanner driver for USB1 is very simple and does not do a set
>  > > config index.
>
> JFYI, usb1 didn't work with this scanner at all.  That's
> why I installed 8-current with usb2 on this workstation
> after all.
>
>  > > HPS: set config index is not guarantueed to work on all devices. It's
>  > > also normally not necessary, unless you want to change the
>  > > configuration. There are of course devices that require it.
>  >
>  > Is the number of configurations field zero in the device descriptor?
>
> No, it seems to be 1:
>
> # usbconfig -u 0 -a 2 dump_device_desc
> ugen0.2: <Scanjet 4300C Hewlett Packard> at usbus0, cfg=255 md=HOST
> spd=FULL (12Mbps) pwr=ON bLength = 0x0012
>   bDescriptorType = 0x0001
>   bcdUSB = 0x0100
>   bDeviceClass = 0x0000
>   bDeviceSubClass = 0x0000
>   bDeviceProtocol = 0x0000
>   bMaxPacketSize0 = 0x0008
>   idVendor = 0x03f0
>   idProduct = 0x0305
>   bcdDevice = 0x0000
> [*** long pause here! ***]
>   iManufacturer = 0x000a  <retrieving string failed>
> [*** long pause here! ***]
>   iProduct = 0x000b  <retrieving string failed>
> [*** long pause here! ***]
>   iSerialNumber = 0x000c  <retrieving string failed>
>   bNumConfigurations = 0x0001
>
> This is with the patch that makes the scanner attach
> (i.e. "err = 0").  If you need more information, please
> let me know.
>
> Unfortunately, the scanner attaches to ugen, not uscanner.
> So there is no /dev/uscanner*, so SANE doesn't find it.  :-(
> The scanner is listed in uscanner2.c, product ID and
> vendor ID match.  Looks like more debugging is needed.

Try to run:

usbconfig -u xxx -a yyy reset

--HPS