Messages in this thread | | | Date | Thu, 24 Jun 1999 18:41:09 +0200 | From | Harald Koenig <> | Subject | Re: Serial driver broken since 2.2.x? |
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On Jun 24, Petr Novak wrote:
> Hello, > > I was trying to upgrade a machine running xntpd with DCF-77 receiver > from 2.0.x kernel to 2.2.x kernel (and other stuff, of course). One of > the problems seems to be that the non-canonical mode of "dumb" serial > ports (ttyS0 and ttyS1) is broken since 2.2.x kernels. >
which program are you using ?
I don't see any such problems in 2.2.x (now 2.2.10) with same configuration using xntpd (xntpd 3-5.93a) and my own small dcf programm. and it's even a UART with FIFO:
# setserial -bg /dev/refclock-0 /dev/refclock-0 at 0x01a8 (irq = 5) is a 16550A (Fourport) # stty < /dev/refclock-0 speed 50 baud; line = 0;
> The RAWDCF code in xntpd handles the port as raw (non-canonical mode) > device, with 50 baud speed. The DCF-77 data format produces 1 pulse > (long or short) every second, which read at the serial port nominally as > '\0' or '\340' (the actual char may vary with the precise width of the > pulse, but typically it is one of these chars). > Please read the FAQ at http://www.tux.org/lkml/
Harald -- All SCSI disks will from now on ___ _____ be required to send an email notice 0--,| /OOOOOOO\ 24 hours prior to complete hardware failure! <_/ / /OOOOOOOOOOO\ \ \/OOOOOOOOOOOOOOO\ \ OOOOOOOOOOOOOOOOO|// Harald Koenig, \/\/\/\/\/\/\/\/\/ Inst.f.Theoret.Astrophysik // / \\ \ koenig@tat.physik.uni-tuebingen.de ^^^^^ ^^^^^
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