On Mon, Oct 14, 2002 at 04:36:54PM +0200, Norbert Rooss wrote: > Greg KH wrote: > > > I think people usually have better luck using agetty, but it too is > > pretty fickle at times. > > With agetty it's not working at all. > > I have just been testing the converter with a different machine, which has a > different USB controller, but there is the same problem.. am i really the > first one using this driver together with mgetty?
I don't know. I do know the *getty programs are pretty tempermental when using usb-serial devices. But I have heard rumors of some people getting this to work. > Once again, i find these debug messages quite strange: > > usbserial.c: serial_write_room - port 0 > usbserial.c: generic_write_room - port 0 > usbserial.c: generic_write_room - returns 64 > usbserial.c: serial_write - port 0, 0 byte(s) > pl2303.c: pl2303_write - port 0, 0 bytes > pl2303.c: pl2303_write - length = 0, data = > usbserial.c: serial_write_room - port 0 > usbserial.c: generic_write_room - port 0 > usbserial.c: generic_write_room - returns 0 > pl2303.c: pl2303_write_bulk_callback - port 0 > usbserial.c: port_softint - port 0 > > These mesages are repeated very often, filling the whole dmesg buffer. It > seems that write() is called again and again with a buffer size of 0. Stracing > mgetty and login does not show those calls. Is this normal behaviour? Hm, I don't know why someone is trying to send 0 bytes to the port, but it is valid. You might run strace on the mgetty side to see if that really is the size of the data being sent. > I really would like to avoid diving into the kernel code.. > > BTW: Using the generic serial driver leads to results as if baud rates are > mismatching - changing the baud rate on one side to other rates had no > success. The generic serial driver does not have any way to set any baud rate. Of course there would be mismatches there :) Good luck, greg k-h ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
