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From: Bernhard Walle <bernhard.walle@domain.hid>
Date: Tue, 8 Aug 2006 16:45:32 +0200
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Subject: [Xenomai-help] Re: rtdm xeno_16550A and usb-serial converter
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To: xenomai@xenomai.org

Hello,

Marco Jackel <ich@domain.hid> [2006-08-08]:
> Is it possible to use an usb-serial converter with the rtdm serial
> driver? Is there a difference between RS422 and RS232?

No. The RTDM Serial driver communicates with the UART of the PC. For a
usb-serial converter you would need a USB real-time stack (which is
available with usb4rt). And not all usb-serial converters are the same,
I know at least two types: ftdi_sio and pl2303 which seems to be most
common. In linux/drivers/usb/serial there are quite more. So you need a
driver for each converter based on usb4rt.

I think it's easier to buy a serial PCI card. :)


Regards,
  Bernhard
-- 
"My great concern is not whether you have failed, but whether
 you are content with your failure." 
         -- Abraham Lincoln