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07.17.2002 at 02:02PM PDT, ID: 20324619
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7.4

serial access in linux

Asked by Socr420 in Linux Programming

Tags: , ,

I've looked over previous quesitons regarding serial port access through linux, but didn't totally understand what was the best/easiest way to program on the ports.  I want to read in through COM1 and read/write through COM2.  I see open("/dev/ttyS0", O_RDWR).  I understand the first arguement, but I don't understand what the declared constansts are and through which library I'm supposed to include to access them.  Also, when I do have the read only port open, it will have to wait for data 24/7.  I don't know the best way to do that (is there a boolean that is changed on the event of buffer status change?) or even how to do that with the read() write() functions.  Start Free Trial
[+][-]07.18.2002 at 02:11AM PDT, ID: 7161671

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[+][-]07.18.2002 at 04:14AM PDT, ID: 7161801

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[+][-]07.18.2002 at 09:40AM PDT, ID: 7162615

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Zone: Linux Programming
Tags: serial, linux, access
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Solution Provided By: Robson
Participating Experts: 4
Solution Grade: A
 
 
[+][-]07.18.2002 at 09:20PM PDT, ID: 7163942

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[+][-]07.19.2002 at 11:44AM PDT, ID: 7165537

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[+][-]07.19.2002 at 06:41PM PDT, ID: 7166121

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[+][-]07.21.2002 at 02:06AM PDT, ID: 7167518

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[+][-]12.11.2003 at 07:19PM PST, ID: 9925610

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[+][-]12.18.2003 at 01:12PM PST, ID: 9967420

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