OMAP2+:UART driver help

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Hi,

I'm a newbie and would like some help with serial drivers in the kernel.

I've got an OMAP35x EVM (with UARTs 1/2-3 on board), and I would like to
write
my own driver which uses UART 3.  I'm not sure of the best way to do
this.
I don't know how to use the existing ttyO2 device and omap-serial driver
for my
own purpose.  Basically I want to write a driver which sits between the
application and the omap-serial driver, but only for UART 3.  Is there a
simple
mechanism to do this, or do I need to replace omap_serial with my own?
Also,
is there an existing driver that does something similar to what I want
that I
can base my driver on?

Paul
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