Serial port (/dev/ttySX) question.

[Rod Haper]

On 01/30/2010 09:39 PM, 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
> 


Or better yet nanosleep() which is more portable and up to date.

--
Rod