[ECOS] Problems with tcgetattr()
Gary Thomas
gary@mlbassoc.com
Tue Aug 22 15:48:00 GMT 2006
Andre-John Mas wrote:
> Just wanted to add a small correction, based on further tests:
>
> If you set the 'Default console device' to be '/dev/termios0',
> or any other termios compatible device, then your code can quite
> happily do tcgetattr() on 'STDIN_FILENO', since it is now mapped
> to the termios device. At least, this is how it is working for me :)
Exactly how it is designed to work, as Andrew took the time to explain
to you :-)
>
> Andre
>
> Andre-John Mas wrote:
>> I got it working finally :)
>>
>> For the benefit of others, the following posting helped:
>>
>> http://ecos.sourceware.org/ml/ecos-discuss/2002-07/msg00092.html
>>
>> to quote the relavent instructions:
>>
>> 1) In the "Serial device drivers" section, I enabled the "TTY-mode serial device drivers" subsection (CYGPKG_IO_SERIAL_TTY = 1).
>> 2) In the "TTY-mode serial device drivers" subsection, I enabled the "TTY-mode channel #0" subsection (CYGPKG_IO_SERIAL_TTY_TTY0 = 1).
>> 3) In the "TTY-mode channel #0" subsection, I specified "TTY-mode device channel #0 device" as "/dev/ser0" (CYGDAT_IO_SERIAL_TTY_TTY0_DEV = "/dev/ser0")
>> 4) I also did 2 and 3 for "TTY-mode channel #1" subsection, but this may not be necessary
>> 5) Check the "Hardware serial device drivers" sections thoroughly to make sure they are what you want for /dev/ser0 (and /dev/ser1 maybe)
>> 6) In the "ISO C Library" section, "ISO C Library standard input/output functions" subsection, I specified "Default console device" to be "/dev/tty0" (CYGDAT_LIBC_STDIO_DEFAULT_CONSOLE = "/dev/tty0")
>>
>> in addition to this I activated the value
>>
>> CYGDAT_IO_SERIAL_POWERPC_QUICC_SMC_SMC1
>>
>> and set the device name to
>>
>> "/dev/ser0"
>>
>> Step 6 above I used '/dev/termios0', instead of '/dev/tty0'. I then in my source code referred to '/dev/termios0' as suggested by Andrew.
>>
>> Andre
>>
>
>
--
------------------------------------------------------------
Gary Thomas | Consulting for the
MLB Associates | Embedded world
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