saeed@sunseeker.UUCP (Saeed Talebbeik) (01/12/90)
Are there any references for writing tty device drivers?
satam@ecs.umass.edu (Kirtikumar Satam, ECE, UMASS Amherst) (01/12/90)
In article <1221@cirrusl.UUCP>, saeed@sunseeker.UUCP (Saeed Talebbeik) writes: > Are there any references for writing tty device drivers? > One of the XENIX manuals have chapter on writing device drivers and an example code for one such tty driver. -satam ------------------------------------------------------------------------ Kirtikumar "Mumbaichaa" Satam INTERNET : satam@ecs.umass.edu BITNET : satam@umaecs.bitnet 217 Northwood Apts, Sunderland, MA 01375 Tel# 413-665-3222 ------------------------------------------------------------------------
saeed@sunseeker.UUCP (Saeed Talebbeik) (01/16/90)
yes there is a section in xenix manual for writing a tty driver but it is only 500 lines. The SCO tech support claims that a true blue tty driver is about 2000 lines. We are missing 1500 lines ! What are they ? What does that 1500 line is supposed to do ? That is exactly the problem. What are the issues involved that have to be addressed in that 1500 lines ? I guess except having access to a sample tty driver source code and running through it there is no way of writing a tty driver for a novice .
jbayer@ispi.UUCP (Jonathan Bayer) (01/16/90)
saeed@sunseeker.UUCP (Saeed Talebbeik) writes: >yes there is a section in xenix manual for writing a tty driver but it is >only 500 lines. The SCO tech support claims that a true blue tty driver >is about 2000 lines. We are missing 1500 lines ! What are they ? What does >that 1500 line is supposed to do ? That is exactly the problem. What are >the issues involved that have to be addressed in that 1500 lines ? >I guess except having access to a sample tty driver source code and running >through it there is no way of writing a tty driver for a novice I have found that SCO Tech Support makes mistakes in questions like these. I was able to implement the serial driver as printed in the manual. It doesn't have modem control, but it does work. JB -- Jonathan Bayer Intelligent Software Products, Inc. (201) 245-5922 500 Oakwood Ave. jbayer@ispi.COM Roselle Park, NJ 07204