Steve Joiner

/dev/ttyS0 on 547x

Discussion created by Steve Joiner on Sep 18, 2007
Latest reply on Sep 19, 2007 by Steve Joiner
I'm using LTIB (20070107) on a 5475 board.  The default configuration is for PSC0 to be used as a console.  I've been using that for a while, and it works fine.  Now, I want to disable the console and use PSC0 as /dev/ttyS0 in my application.

I have commented out the call to register_console() in arch/m68k/coldfire/config.c.  It seems like that is all I should need to do, but I'm having a problem.  I can see that data is being received on /dev/ttyS0, but when the driver tries to transmit, no data shows up on my RS-232 port.  I can see that transmit_chars() in drivers/serial/mcfserial.c is being called once for the first character, but never gets called again.

Can anyone make any suggestions on this?  Has anyone been able to get the /dev/ttyS* devices to work with the 547x/8x LTIB?