Re: [PATCH] hciattach: fix serial speed setting for wl1271

[Yegor Yefremov <yegor_sub1@visionsystems.de>]

Am 05.09.2011 15:42, schrieb Yegor Yefremov:
> override speed setting if firmware script issues serial settings command,
> otherwise the value given in the firmware script will be overridden.
> 
> Example:
> 
> hciattach /dev/ttyO1 texas 115200
> 
> will fail, because /dev/ttyO1 will be opened with 115200 b/s, then
> the firmware script will set the buadrate to 3000000 b/s, after UART init
> hciattach.c will set the baudrate to 115200, so communication is broken.
> 
> The only correct way is to set both speeds:
> 
> hciattach -s 115200 /dev/ttyO1 texas 3000000
> 
> With this patch only initial speed must be specified. The former semantic
> will be preserved in case the firmware script doesn't provide serial
> settings action.
> 
> Tested with wl1271 and firmware TIInit_7.2.31.bts
> 
> Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
> ---
>  tools/hciattach.c    |    2 +-
>  tools/hciattach.h    |    2 +-
>  tools/hciattach_ti.c |   19 +++++++++++--------
>  3 files changed, 13 insertions(+), 10 deletions(-)
> 

See this thread for more info: http://e2e.ti.com/support/low_power_rf/f/307/t/57254.aspx