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Basically, SVR4.2 is quite similar to SVR4, but you have to watch out for
some details (defining -DSVR42 in the Makefile will do it for you).
Most important, the termiox interface via the TCGETX /
TCSETX ioctl()s does not seem to work any longer - the calls
return an error, and the port behaves strangely. If you're experiencing
this, please try commenting out the corresponding code in `tio.c',
funtion tio_set_flow_control() and mail me whether that make it
work.
Further, ussing USE_POLL or USE_READ, won't work. The default
of USE_SELECT is OK.
To enable hardware handshake, use the tty device with the trailing "h", e.g. `tty01h'. On the other one (`tty01'), the driver won't do H/W handshake.
Depending on the configuration, parallel dial-out with Taylor-UUCP may fail
(uucico complaining that it cannot set CLOCAL), in that case, you've
to recompile Taylor with different settings for the termio selection
(POSIX vs. SYSV).
Many thanks to Joerg Weber (joerg@interface-business.de) for finding all those problems.
Ed Hall (edhall@rand.org) found another major glitch on UnixWare 4.2: if
you run sendfax without setting
ignore-carrier true in `sendfax.config', and sendfax
switches off carrier detection at the end of the very last page, the
kernel code messes up something and bytes get lost. The modem then returns
funny error codes, like, for example,
Transmission error: +FHNG:44 (Unrecognized Transparent data command)
If you're experiencing this, just set ignore-carrier true
and everything should work just fine (please tell me in any case whether
it was necessary, because if it happens for other people as well, I'll
make this permanent on SVR42).
See section Solaris 2.3 and up.
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