On 06/03/10 09:41, Nico Prenzel wrote:
> Hello Anthony,
>
> which qemu-kvm version do you expect to work with serial usb devices?
>
> After you've changed this ticket status and I've checked it again with
> qemu-kvm version 0.12.4. The reported error message is gone away and the
> device is present in the guest. The cdc_acm driver loads too without any
> visible problems, but the device is still unusable.
> The device data led flash if it gets un/initialized by minicom.
> But if I try to make a test dial, nothing happens after I call a phone number.
>
> To be more precise:
> -host dosn't have loaded the cdc_acm driver
> -guest loads the cdc_acm driver
> -a dial with minicom to the same phone number works on the host, if I load
> the cdc_acm within the host
>
> I would like to get this fixed, as I really want to use this usb-device
> as my dusty fax again.
>
One option I resorted to is using Qemu's emulated USB serial device and
connecting it to the USB serial device host side. The stack then looks like:
.---------------------.
| VM |
| |
| /dev/ttyUSB0 |
|---------------------|
| Qemu - serial device|
'---------------------'
|
.---------------------.
| Host: /dev/ttyUSB0 |
'---------------------'
|
.---------------------.
| USB serial port |++++++++<-- character stream -->++++++++
'---------------------'
A hack, but it works. :-)
David
