Linux-kernel mailing list archive 1999-25,: Re: Serial driver broken since 2.2.x?

# Re: Serial driver broken since 2.2.x?

Harald Koenig (koenig@tat.physik.uni-tuebingen.de)
Thu, 24 Jun 1999 18:41:09 +0200

- Messages sorted by: [ date ][ thread ][ subject ][ author ]
- Next message: Andreas Spengler: "Error in file.c in linux/fs/fat/file.c (2.3.8)"
- Previous message: Pauline Middelink: "Re: why is the size of a directory always 1024b ?"

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                     ^^^^^       ^^^^^

    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.rutgers.edu
    Please read the FAQ at http://www.tux.org/lkml/

- Next message: Andreas Spengler: "Error in file.c in linux/fs/fat/file.c (2.3.8)"
- Previous message: Pauline Middelink: "Re: why is the size of a directory always 1024b ?"