Greg KH wrote: > On Mon, May 14, 2012 at 06:05:52PM +0000, Russell Nelson wrote: >> Greg KH <gregkh@...> writes: >> 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. Is this about the second top-most menu entry? --- USB Serial Converter support -*- Functions for loading firmware on EZUSB chips [*] USB Generic Serial Driver CONFIG_USB_SERIAL_GENERIC: Say Y here if you want to use the generic USB serial driver. Please read <file:Documentation/usb/usb-serial.txt> for more information on using this driver. It is recommended that the "USB Serial converter support" be compiled as a module for this driver to be used properly. Or is it about the parent? CONFIG_USB_SERIAL: Say Y here if you have a USB device that provides normal serial ports, or acts like a serial device, and you want to connect it to your USB bus. Please read <file:Documentation/usb/usb-serial.txt> for more information on the specifics of the different devices that are supported, and on how to use them. To compile this driver as a module, choose M here: the module will be called usbserial. Symbol: USB_SERIAL Type: tristate Prompt: USB Serial Converter support Could the documenting text be made more clear that this is not really something to be generally enabled? I probably felt into the same trap as well. It is puzzling that there are so many devcies listed after the "USB Generic Serial Driver" ... What am I getting wrong? Thanks, Martin -- 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