nanogui: Keyboard driver
Subject:
keyboard driver
From:
vikas kedia ####@####.####
Date:
17 Oct 2002 08:43:15 -0000
Message-Id: <3DAD2750.8050408@nexgenix.com>
i have to attach a simple matrix keyboard to my system ... there will be
a keyboard driver running which will simply scan the pins of keyboard
and if a key is pressed write a scan code into a buffer in the memory
(which is a FIFO) .. now how do i write a keyboard driver for
microwindows which will keep on checking that FIFO to see if it is empty
or not .. because currently what microwindows does is a select call for
all the fds and whichver isset it reads from that .. but here this
process will only work if i can attach a file descriptor to shared
memory .. can i do that??
other method i can think of is that i dont check for keyboard from
select call and after select call returns (by timeout or by an event) i
also check for keyboard buffer..
regards
vikas
