[ntp:questions] Motorola Oncore M12 driver questions
Richard B. Gilbert
rgilbert88 at comcast.net
Sun Jan 18 23:05:12 UTC 2004
Environment: Sun Ultra 5/360MHz 256meg Solaris 8 4/02, unpatched. NTP
I have the Oncore plugged into the 9-pin serial port on the back,
labeled "B". Comments in the driver read as follows:
* This code uses the two devices
* which may be linked to the same device.
Obviously, I"m expected to create these devices, since they don't
exist. How? I would expect to create links in /dev to something else
in /dev but the details escape me. Hard links or soft? To which device
file in /dev?
sunblok_# ls /dev/tt*
/dev/tty /dev/ttyp2 /dev/ttyp7 /dev/ttypc /dev/ttyq1 /dev/ttyq6
/dev/ttyqb /dev/ttyr0 /dev/ttyr5 /dev/ttyra /dev/ttyrf
/dev/ttya /dev/ttyp3 /dev/ttyp8 /dev/ttypd /dev/ttyq2 /dev/ttyq7
/dev/ttyqc /dev/ttyr1 /dev/ttyr6 /dev/ttyrb
/dev/ttyb /dev/ttyp4 /dev/ttyp9 /dev/ttype /dev/ttyq3 /dev/ttyq8
/dev/ttyqd /dev/ttyr2 /dev/ttyr7 /dev/ttyrc
/dev/ttyp0 /dev/ttyp5 /dev/ttypa /dev/ttypf /dev/ttyq4 /dev/ttyq9
/dev/ttyqe /dev/ttyr3 /dev/ttyr8 /dev/ttyrd
/dev/ttyp1 /dev/ttyp6 /dev/ttypb /dev/ttyq0 /dev/ttyq5 /dev/ttyqa
/dev/ttyqf /dev/ttyr4 /dev/ttyr9 /dev/ttyre
sunblok_# ls /dev/term
The Sun System Administration course did not touch on serial devices at
all and I don't recall ever having to deal with one in my checkered Unix
career (SGI Irix V3.x 4.x, 5.x, HPUX v? Digital Unix V4.? and, most
recently Solaris 8 with Solaris 9 waiting in the wings) Unix has always
been a sideline rather than a career and the amount of stuff I don't
know/understand is simply amazing.
Where would I expect to learn the relationship(s) between 51 device
files and the two serial ports actually on the system? Or how about
/dev/term/a and /dev/term/b. cat /dev/term/b reveals something that
could be Motorola binary!
Next, the configuration file expects LAT and LONG with +/-. I've
always dealt with N/S and E/W and don't know the sign convention? The
comments neglect to explain it. I'm at N39 45.3802 and W75 04.2737. Is
N + or -? Is W + or -?
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