Return to device_drivers CVS log

Up to [MW Coherent from dump] / coherent / a / usr / man / COHERENT

coherent

device drivers               Overview              device drivers




A device driver  is a program that controls the  action of one of
the physical devices attached to your computer system.

The following  table lists the device  drivers included with this
edition  of  the  COHERENT system.   The  first  field gives  the
device's major device number;  the second gives its name; and the
third describes it.  When a major device number has no driver as-
sociated with it, that device is available for a driver yet to be
written.

 0:  *mmeemm      Interface to memory
 1:  ttttyy       Primitive tty driver
 2:  kkbb/mmmm     Keyboard and video
 3:  llpp        Parallel line printer
 4:  ffll        Floppy drive
 5:  aall00       Serial line 0 (COM1 and COM3)
 6:  aall11       Serial line 1 (COM2 and COM4)
 7:  hhss        Generic polled multi-port serial card
 8:  rrmm        RAM disk
 9:
10:
11:  aatt        AT hard disk
12:
13:  ssccssii      SCSI device driver
14:
15:
16:
17:
18:
19:
20:
21:
22:
23:  sseemm       System V compatible semaphores
24:  sshhmm       System V subset shared memory
25:  mmssgg       System V compatible messaging
26:
27:
28:
29:
30:
31:

Also included are drivers for the following devices:
ccoonnssoollee   Console driver
cctt        Controlling terminal driver
nnuullll      The ``bit bucket''

***** See Also *****

at, boot,  com, console,  ct, fl,  Lexicon, lp, mboot,  mem, msg,
null, scsi, sem, shm, tape, termio




COHERENT Lexicon                                           Page 1




device drivers               Overview              device drivers



***** Notes *****

See the Release Notes for your  release of COHERENT for a list of
supported devices and device drivers.

The devices  msg, sem, and  shm are loadable drivers  that can be
loaded into memory using the command drvld.  See their respective
entries for more information.

















































COHERENT Lexicon                                           Page 2

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.