On Mon, May 06, 2013 at 10:27:51PM +0200, Fernando Di Nucci wrote:
> I have a PL2303HX adapter and I need to set up its baud rate to
> 1228800 or 2457600
>
> (openwrt, linux kernel 3.3.8, coreutils 8.16 and ubuntu quantal
> 3.5.0-28, same coreutils).
>
> I tried stty -F /dev/ttyUSB0 baudrate
>
> Well, when baudrate is 921600 or 3000000 everything is fine, but
> when I try 1228800 or 2457600 stty complaints:
> stty: invalid argument '2457600'.
>
> I searched stty source and added:
>
> #ifdef B1228800
> {"1228800", B1228800, 1228800},
> #endif
> #ifdef B2457600
> {"2457600", B2457600, 2457600},
> #endif
>
> and compiled but no luck. I don't know where else those values need
> also to be modified.
>
> Can you please point me to the right direction?
I don't think stty can handle the higher baud rates, you are going to
have to do the tty ioctl commands yourself in your program.
Take a look at the cfsetospeed() man page for details.
Hope this helps,
greg k-h
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