uart_cpm scc Rx problem after second open of the device

Vitaly Bordug vbordug at
Tue Aug 29 00:50:22 EST 2006

On Mon, 28 Aug 2006 17:04:16 +0300
"Alexandros Kostopoulos" <akostop at> wrote:

> I experienced a problem with the cpm_uart scc driver (kernel version  
> 2.6.13) while running the driver for a serial port NOT configured as a  
> console.
> The problem is as follows:
> The first time the device (/dev/ttyCPM0) is opened, everything works ok.  
> The second time, however, the device is opened, receive does not work. The  
> device can only transmit, but doesn't receive anything.
I'm recalling to fix it a while ago (later than .14 though). There were not just the line below,
but you cant find the respective stuff on the line (linuxppc-embedded) archive/ kernel git.


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