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- From: rajeev@hpnmdla.sr.hp.com (Rajeev Menon)
- Date: Mon, 23 Nov 1992 22:29:21 GMT
- Subject: open() from within a Device driver
- Message-ID: <12850008@hpnmdla.sr.hp.com>
- Organization: Hewlett-Packard, Santa Rosa, CA
- Path: sparky!uunet!cs.utexas.edu!sdd.hp.com!hpscit.sc.hp.com!scd.hp.com!hpscdm!hplextra!hpl-opus!hpnmdla!rajeev
- Newsgroups: comp.unix.internals
- Lines: 20
-
- I have a device driver on SCO UNIX SV3.2 (openDesktop 1.0) that
- needs to open a regular file from within the driver, write stuff to it
- and close the file later on, basically the equivalent of the open(),
- write(), close() system call. However, I'd guess I have to use kernel
- equivalents being inside a device driver, right ?
-
- The device driver manual lists a set of kernel routines, but I am
- not sure what's appropriate. I see no equivalent of open, although
- I see a db_read and a db_write. I'd appreciate hearing from someone
- who knows. If you have done this on other UNIXen, I'd be interested
- in knowing the equivalents too.
-
- thanks
-
- rajeev
- -----------------------------------------------------------------------
- Rajeev Menon Phone : (707)-577-2302
- Hewlett Packard Company e-mail: rajeev@sr.hp.com
- 1400 Fountaingrove Pkwy
- Santa Rosa CA 95403
-