Hi, I found an issue with the ftdi driver when using it with a terminal program like minicom. The problem occurs when minicom tries to reset a modem. It doesn't set the DTR line directly(using ioctl), but switches the baudrate to B0 (0 bauds), which should guarantee the DTR line to go low and then switches back to regular baudrate (e.g. B19200). I believe this approach is correct and there are probably other terminal programs out there that use this too.
The issue is that this transition from Bxxx->B0 and B0->Bxxx is not handled correctly by the driver (not in 2.4 nor 2.6) and no change on DTR happens. I proposed a solution to this and implemented some of this stuff that is in any other serial driver, currently I have a patch for 2.4 kernel only. Is anyone interested in looking at the patch? I believe this should go to ftdi-devel mailing list too, but not sure if that list is still alive. Thanks, Jan ---------------------------------------------------------------------- Jan Capek - CCS Inc. Firmware developer ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
