I run OpenBSD 4.6 (i386) on a PCEngines ALIX2c3, as a low power
file/web/DHCP server. I would like to have this machine regularly
retrieve data from an instrument which communicates over RS-232.
I'm using a Prolific USB-RS232 converter (full dmesg for the ALIX
below).
I have no protocol documenta
On Sat, May 01, 2010 at 15:30:28 -0700, J.C. Roberts wrote:
> > status = tcsetattr(fd, TCSANOW, &options);
>
> How does it behave if you use "TCSAFLUSH" rather than "TCSANOW" ?
I made that substitution and added a
#define DEBUG 1
The resulting binary sometimes fails to return and I then have to
On Sun, May 2, 2010 at 5:33 PM, Neil O'Brien wrote:
> On Sat, May 01, 2010 at 15:30:28 -0700, J.C. Roberts wrote:
>> > status = tcsetattr(fd, TCSANOW, &options);
>>
>> How does it behave if you use "TCSAFLUSH" rather than "TCSANOW" ?
>
> I made that substitution and added a
> #define DEBUG 1
>
>
On Sun, May 02, 2010 at 20:56:36 +1000, Aaron Mason wrote:
> On Sun, May 2, 2010 at 5:33 PM, Neil O'Brien wrote:
> > On Sat, May 01, 2010 at 15:30:28 -0700, J.C. Roberts wrote:
> >> > status = tcsetattr(fd, TCSANOW, &options);
> >>
> >> How does it behave if you use "TCSAFLUSH" rather than "TCSA
On Sun, 2 May 2010 16:45:44 +0100 "Neil O'Brien"
wrote:
> On Sun, May 02, 2010 at 20:56:36 +1000, Aaron Mason wrote:
> > On Sun, May 2, 2010 at 5:33 PM, Neil O'Brien
> > wrote:
> > > On Sat, May 01, 2010 at 15:30:28 -0700, J.C. Roberts wrote:
> > >> > status = tcsetattr(fd, TCSANOW, &options);
On Sun, 2 May 2010 12:01:59 -0700 "J.C. Roberts"
wrote:
> The other problem is understanding what is happening. Unless you
> specifically configured the descriptor to return immediately, your
> read(2) call will sleep until it gets the requested number of bytes
> from the descriptor, until an in
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