LP.4
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操作系统开发
开发平台:
C/C++
- LP(4) Minix Programmer's Manual LP(4)
- NAME
- lp - line printer
- DESCRIPTION
- The lp device refers to the line printer attached to the parallel port.
- Any byte written to this device is printed. Only one process may have
- the device open.
- The write (2) call may return with a smaller count then the number of
- bytes requested to write. The next write call is then likely to fail
- with the error code EAGAIN if the printer is out of paper, or EIO if the
- printer is turned off.
- FILES
- /dev/lp Parallel port device.
- SEE ALSO
- lp(1).
- BUGS
- Only one parallel port is supported.
- AUTHOR
- Kees J. Bot (kjb@cs.vu.nl)
- 1