[ECOS] Help with Interrupt driven Serial ports in EB40A

[Giri Raja]

Hi,
   I'm trying to write a small application, which
would accept data from /dev/ttyS0 and convey it via a
GDB session from /dev/ttyS1. 
I want the reception of data from /dev/ttyS0 to be
interrupt driven. Should I then create a interrupt
using cyg_drv_interrupt_create with the USART0
interrupt vector? And should I also create my own ISR
and DSR, then use the device handle to read and wirte?
I'm confused because I saw an implementation of the
serial drivers' ISR and DSR implementation in
at91_serial.c located under 
ecos/packages/devs/serial/arm/at91/current/src

Shall I just ignore it and just include
<cyg/hal/drv_api.h> .

Your response would be very helpful.

Thank you in advance.

Giri.

p.s: This is a repost, I'm desperately seeking for
help. Thank you for your patience.

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