[ECOS] cyg_io_read blocking

[ECOS] cyg_io_read blocking

[Raghu]

>>>Finally, this thread really should be on ecos-
>>> discuss

Just wanted to put this here as suggested by Gary. 

>>> * If you want to do threaded operations, you'll
>>> need to use a serial device driver that supports
>>> this - not /dev/ttydiag which does not.
>>> It's not clear what driver/device your I/O 
>>> channel is connected to,but it needs to be 
>>> a "standard serial" driver, e.g. /dev/ser0

I have a IXDP425 eval board, and I think there is no
standard serial driver that registers as "/dev/ser0" 
for this board. Do we have to write one ?? I think
there is only "ixp425_diag.c" in
platforms/hal/arm/xscale/ixp425 directory.

Regards,
Raghu.



		
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Re: [ECOS] cyg_io_read blocking

[Gary Thomas]

On Sun, 2005-04-10 at 22:09 -0700, Raghu wrote: 
> >>>Finally, this thread really should be on ecos-
> >>> discuss
> 
> Just wanted to put this here as suggested by Gary. 
> 
> >>> * If you want to do threaded operations, you'll
> >>> need to use a serial device driver that supports
> >>> this - not /dev/ttydiag which does not.
> >>> It's not clear what driver/device your I/O 
> >>> channel is connected to,but it needs to be 
> >>> a "standard serial" driver, e.g. /dev/ser0
> 
> I have a IXDP425 eval board, and I think there is no
> standard serial driver that registers as "/dev/ser0" 
> for this board. Do we have to write one ?? I think
> there is only "ixp425_diag.c" in
> platforms/hal/arm/xscale/ixp425 directory.

Yes, you'll need to write one.  It should be straight forward
since the serial ports are 16550 compatible.

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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