Custom serial keyboard: playing dirty with the serial console

[Paolo S. <ar...@ti...>]

We have a custom IR keyboard & mouse, that i have attached to the serial =
port of my board (i have an embedded powerpc). Its protocol is called =
4PPM, and i had to write a driver that intercepts these serial =
characters, decodes and convert them to standard XT scancodes.

Serial routines were implemented, yet, and i decided to 'insert' my 4PPM =
layer inside of the serial console driver.=20

Everything is now ok: i receive correct packets, convert them to XT =
scancodes and call 'handle_scancode' to process them.

But 'handle_scancode' only prints characters to the console, without =
apparently processing them. I see everything i write, but when i press =
enter (scancode 0x1c), i only see a new line in the console, not any new =
bash prompt.

Why this? Is it correct to intercept the serial console and not =
returning single characters from inside it but from 'handle_scancode' =
mode?

Who know that?

THANX!

- may the pinguin b with u -

Have a nice day,
Paolo Scaffardi.
AIRVENT SAM s.p.a. - RIMINI - ITALY