On Sun, Feb 26, 2012 at 04:37:33PM +0100, Stefan Dreyer wrote:
> Hello Johan,
>
> i hope, you can help me. I try to get a barcode-Scanner (Metrologic
> Focus MS 1690) to work. If i take a look at the Windows driver, this
> scanner should work in serial-mode as CDC ACM.
> i have added the device:
> { USB_DEVICE(0x0c2e, 0x0720), /*Metro Metrologic MS7120 Barcode Scanner
> (bi-directional serial mode) */
> },
>
> and recompile the module. If i plug the device in, the module cdc-acm is
> loaded. But no device ttyACM0 appears.
What does lsusb -v say? If it is a cdc-acm device you should not need to
add the pid/vid to the cdc-acm driver.
What is written to the system logs?
> Is there a possibility to debug the module? I would like to know, what
> happens.
If your recompiling the module you can enable debugging by changing the
following "undef"
#undef DEBUG
to "define", or you can enable dynamic debugging (see
Documentation/dynamic-debug-howto.txt).
Thanks,
Johan
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