J.Bakshi wrote:
> Hi list,
> 
> hope everyone is well here :-)
> 
> I have a question about linux usb driver. Is there any driver which allows 
> attaching a serial device to usb port under linux ? My old PI PC has a serial 
> port so I don't have problem to use JDM programmer (PIC Programmer). But my 
> new mother board of AMD doesn't have any COM port. Hence I am looking such an 
> arrangement that I can still use serial devices by a USB-to-Serial adapter. 
> But does linux has any driver/feature to support this ?
USB-to-serial converters do not work well with JDM and similar "dumb"
(non-microcontrolled) programmers, and if they do they do so very
slowly, as USB-to-serial converters are designed to handle normal data
transfer, not the status line toggling required for these programmers.
If you need USB support I suggest you get either a USB programmer or a
converter and a microcontrolled programmer like Wisp628, EasyProg, etc.

Linux does have drivers for most serial converters. Look under USB
devices on the kernel configuration menu if you build your own kernels,
or just look for the right modules package from your distro (it is quite
likely you already have them). I've used a USB cable for a cellphone
without any trouble (the cable was actually a converter, as the
cellphone used a serial interface). Devices usually appear as
/dev/ttyUSB0 or similar (as opposed to /dev/ttyS0 for the first internal
serial port).

-- 
Hector Martin (hector@marcansoft.com)
Public Key: http://www.marcansoft.com/hector.asc

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