Serial port (/dev/ttySX) question.
Gene Heskett
gene.heskett at verizon.net
Sun Jan 31 04:59:00 UTC 2010
On Saturday 30 January 2010, Rod Haper wrote:
>On 01/30/2010 07:03 PM, Mikkel wrote:
>> On 01/30/2010 06:25 PM, Gene Heskett wrote:
>>> Q? This code uses the 'sleep(1)' call to time its repeat scans. It is
>>> using no cpu as its the bottom item on an htop sorted by use report.
>>>
>>> I assume I can go into the tarball and change those 2 sleep calls to
>>> sleep(0.05) to get 20 scans a second? I'm going to try it anyway & see
>>> if it will still build.
>>
>> Nope - sleep only accepts an integer value. Using sleep, 1 second it
>> the best you will get.
>>
>> Mikkel
>
>He probably wants usleep() which sleeps for microsecond intervals.
>
>--
>Rod
>
Precisely, a usleep(50000) would be much better . And some man page studying
for rpmbuild options. I tried to edit the .c source, but then it refused to
build and that was not the error it spit out. We'll poke at it some more
tomorrow unless I start plowing thru the sources I have for sc6551.asm to
make that driver, for an H63C09 equipt trs-80 Color Computer 3, now running
Nitros9.
Specifically, I need rpmbuild to stop after unpacking and patching the
tarball, giving me a chance to edit the .c file to change that, and then
restart at the next step. I've been through the man page a couple of times,
and how to do that hasn't exactly reached up and slapped me. Hints welcome
of course.
Thanks Rod.
--
Cheers, Gene
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
You will be divorced within a year.
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