USB driver on µclinux to communucation with PC with USB

--- Quote Start ---

there are 'cables' that convert 3.3v TTL rs232 data to USB (USB host one end, 6 pin 0.1" pitch the other). With an appropriate host (eg PC) driver the will give serial access via USB.

'Interestingly' linux may come with a driver (my one did), but windows may need one downloaded!

--- Quote End ---

I just ordered a couple of the FTDI JTAG-to-UART cables ($26 each);

http://search.digikey.com/us/en/products/c232hd-ddhsp-0/768-1011-nd/2767783

http://search.digikey.com/us/en/products/c232hd-ddhsp-0/768-1011-nd/2767783

They both show up as Virtual COM ports under windows, and as USB UARTs under Linux. The MPSSE modes can be accessed via the closed-source FTDI drivers (Windows or Linux), and via libusb and libftdi.

Cheers,

Dave