Re: linux serial buffer question

From: Grant Edwards (grante_at_visi.com)
Date: 11/30/04 

Date: 30 Nov 2004 17:10:02 GMT

On 2004-11-30, Eric Spaulding <elsNOSPAM24@cornell.edu> wrote:

> Is there an easy way to increase my receive serial buffer in linux?

You'd have to rebuild the kernel after modifying the sources to
the tty line discipline module.

> It looks like it's currently set at 4096 bytes.

Right. The last time I looked it's set to one page. On IA32
that's 4K.

> I'm using pyserial + python and would like to read larger
> chunks than this at one time.

Why not wrap the read() method in three lines of python to keep
calling read() until you get the desired amount of data? Just
subclass the serial port object, override the read() method
with a loop that calls the super's read. 

-- 
Grant Edwards                   grante             Yow!  I'd like some JUNK
                                  at               FOOD... and then I want to
                               visi.com            be ALONE --

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