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Serial Parallel Controller User’s Guide—February 1993
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* stc_ioctl: unit board number line number can’t allocate TIOCMGET block
Error. The device driver could not allocate a data block from the
allocb()
function for the TIOCMGET return value. The
ioctl
will not execute as a
result of this condition.
Parallel Port Messages
* ppc_stat: unit board number PAPER OUT
Advisory. The peripheral device connected to the parallel port on your
enumerated board is out of paper. The PAPER OUT line was asserted as a
result.
* ppc_stat: unit board number PAPER OUT condition cleared
Advisory. The peripheral device connected to the parallel port on your
enumerated board has cleared the PAPER OUT condition. The PAPER OUT
line was deasserted as a result.
* ppc_stat: unit board number OFFLINE
Advisory. The peripheral device connected to the parallel port on your
enumerated board is off-line. The SLCT line was deasserted as a result.
* ppc_stat: unit board number OFFLINE condition cleared
Advisory. The peripheral device connected to the parallel port on your
enumerated board has cleared the OFFLINE condition. The SLCT line was
asserted as a result.
* ppc_stat: unit board number ERROR
Advisory. The peripheral device connected to the parallel port on your
enumerated board has detected some error. The ERROR line was asserted as a
result.
* ppc_stat: unit board number ERROR condition cleared
Advisory. The peripheral device connected to the parallel port on your
enumerated board has cleared the ERROR condition. The ERROR line was
deasserted as a result.
* ppc_xwait: unit board number interrupted sleep
Advisory. The device driver received a signal while waiting for the queued
output from the previous STREAMS module to be sent to the parallel port. The
device driver returns from the
sleep()
call prematurely as a result.
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