3 extra driver need to develop for GTA03
alan at lxorguk.ukuu.org.uk
Wed May 28 20:56:13 CEST 2008
> The Linux serial driver is an abomination in itself (the only saving grace is
> that it's largely compatible back to the days of the ASR33 teletype machine).
We do 2Mbits/sec quite happily.
> IMO, if performance is the goal, we need to consider a custom high-speed serial
> driver for the UART connected to the GSM, one that gets rid of the overhead of
> the entire tty layer in the kernel.
What overhead. If you are driving the tty layer properly on a modern
kernel you should have almost no overhead from the tty layer. If not
collect profile traces from 2.6.24 or later, gprof them, produce the
graphs and file a bug.
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