serial port question Re: [debian-user] Newbie comments & queries
On a thread in the debian-user mailing list, an answer
came up regarding the serial port. It reminded me of
an unasked question I had on that topic, which should
probably be asked in debian-sparc rather than debian-user:
On Sun, Dec 02, 2001 at 08:41:16PM -0800, Karsten M. Self wrote:
> Check your 'dmesg' (or /var/log/dmesg) output. Should be something
> like:
>
> Detected PS/2 Mouse Port.
> Serial driver version 4.27 with no serial options enabled
> ttyS00 at 0x03f8 (irq = 4) is a 16550A
> ttyS01 at 0x02f8 (irq = 3) is a 16550A
> ttyS02 at 0x03e8 (irq = 4) is a 16550A
> pty: 512 Unix98 ptys configured
> Real Time Clock Driver v1.09
Mine looks like:
Sparc Zilog8530 serial driver version 1.41.2.6
tty00 at 0xffede004 (irq = 44) is a Zilog8530
tty01 at 0xffede000 (irq = 44) is a Zilog8530
tty02 at 0xffedb004 (irq = 44) is a Zilog8530
tty03 at 0xffedb000 (irq = 44) is a Zilog8530
Sun TYPE 5 keyboard detected without keyclick
pty: 256 Unix98 ptys configured
but I don't have any devices /dev/tty0[0-3]
The modem goes out /dev/ttyS0 according to wvdial.conf
Actually this is what's in my /dev directory:
seal:/var/spool/exim/input# ls -la /dev | grep "4, 6"
crw-rw-rw- 1 root tty 4, 60 Feb 20 1999 tty60
crw-rw-rw- 1 root tty 4, 61 Feb 20 1999 tty61
crw-rw-rw- 1 root tty 4, 62 Feb 20 1999 tty62
crw-rw-rw- 1 root tty 4, 63 Feb 20 1999 tty63
crw-r----- 1 root dialout 4, 64 Dec 4 21:43 ttyS0
crw-rw---- 1 root dialout 4, 65 Jul 15 2000 ttyS1
crw-rw---- 1 root dialout 4, 66 Feb 20 1999 ttyS2
crw-rw---- 1 root dialout 4, 67 Feb 20 1999 ttyS3
seal:/var/spool/exim/input#
There are 64 tty#, with # from 0 to 63 (yes, 0, not 00).
And then there are 4 ttyS#, with # from 0 to 3, and minor
numbers continuing after the tty# series.
Why doesn't the dmesg output tty0[0-3] match the entries in
the /dev directory?
--
bjb@achilles.net
Welcome to the GNU age! http://www.gnu.org
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