[rescue] Solaris Parallel Port Programming
mcguire at neurotica.com
Fri Jul 25 13:39:37 CDT 2003
On Friday, July 25, 2003, at 02:28 PM, Sheldon T. Hall wrote:
>> Are you going to use the Solaris driver, or are you looking to
>> control the port yourself at the driver level? If so, looking
>> at the driver source in Linux may prove usefull.
> I dunno. What I'd _really_ like to do is have some simple routine that
> me set the various parallel port lines "high" or "low" from a shell
> I don't know whether that would require "bare metal" programming or
> I can use the driver.
>> man pages on bpp have a listing of all the IOCTL stuff... as for
>> using them... well... I've never done that :-)
> I'll have a look. I've never done that sort of thing, either, but
> I've made
> a career out of doing things that haven't been done before....
IOCTL dicking is pretty easy...in general, you allocate a struct of a
particular type (depending on the IOCTL you want to use), stuff its
members with the (IOCTL-dependent) values depending on what you want to
do, then call ioctl() with the IOCTL number that you want to call and a
pointer the struct as parameters.
It should be fairly easy to build a command-line program to twiddle
those bits. If you decide to do that, drop me a note and I'll do what
I can to help out.
Dave McGuire "You don't have Vaseline in Canada?"
St. Petersburg, FL -Bill Bradford
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