Re: How to avoid serial port buffer overruns?
From: Raphael Hertzog
Date: Thu Aug 17 2006 - 11:49:31 EST
On Thu, 17 Aug 2006, Alan Cox wrote:
> > > > is there's something in the system starving interrupt servicing.
> > > > Serial is very sensitive to that, and increases in other system
> > > > latencies tends to have an adverse impact on serial.
> > >
> > > I see no support for the 16650 specific bits in the driver, so that
> > > alone may be a problem ?
> > Huh? 16550 not 16650. Did you miss this?
> Raphael said "I forgot to mention the kind of UART in my mail but it is
> a 16650A"
That's a typo. :-/
Two lines further in the same mail there was:
bash-2.05a# cat /proc/tty/driver/serial
serinfo:1.0 driver revision:
0: uart:16550A port:000003F8 irq:4 tx:31 rx:7 RTS|CTS|DTR|DSR
So I meant 16550A. Sorry.
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