Re: USB Serial Converter driver and multiple devices

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, May 14, 2012 at 06:05:52PM +0000, Russell Nelson wrote:
> Greg KH <gregkh@...> writes:
> 
> > Care to send a patch that adds your device id to this driver so it will
> > work for everyone?
> 
> Happy to do so once I have it working.
> 
> > And as for a solution, again, the generic usb-serial driver is not for a
> > real device, that is why it can accept only one device id through the
> > module parameters.
> > 
> > However, the new_id file in sysfs can accept multiple device ids, if you
> > need to for testing.
> 
> Except not. usbserial works fine when I modprobe it, but it doesn't work if I
> use new_id. Same problem Dimitrios Symeonidis was having a year ago. I'm still
> seeing it in 3.2.0-23-generic-pae #36-Ubuntu.
> 
> Well, I say that it works because I can see a /dev/ttyUSB0, but I can't set the
> baud rate to 4800. But that may be a completely separate problem.

There is no way to set a baud rate for a generic usb-serial device, it's
physically impossible.  So perhaps it is working just fine for you :)

Again the usb-serial generic device is a very dumb, slow device, with no
line settings at all.  It's ment for testing and one-off prototypes, not
for "real" devices in any way.

thanks,

greg k-h


> 
> 
> 
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-usb" in
> the body of a message to majordomo@xxxxxxxxxxxxxxx
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux