Device driver

[svlsr2000]

Hi i am new to linux and device driver. we have a board which could be connected to com0 port. we are able to connect to this board using minicom and and device selected is /dev/ttyS0.
we want to write a driver for this board. Can any one suggest how to go about. we dont want to do this in user space since we want some hands on in device driver programming.

[arne]

Hi i am new to linux and device driver. we have a board which could be connected to com0 port. we are able to connect to this board using minicom and and device selected is /dev/ttyS0.
we want to write a driver for this board. Can any one suggest how to go about. we dont want to do this in user space since we want some hands on in device driver programming.

The book "Linux Device Drivers" is available online, but for a start you can also look for some tutorials. Just google for "linux device drivers tutorials" and you'll find articles, introductions and programming tutorials at all levels of details. I couldn't find the one I was using some years ago ...

[svlsr2000]

The book "Linux Device Drivers" is available online, but for a start you can also look for some tutorials. Just google for "linux device drivers tutorials" and you'll find articles, introductions and programming tutorials at all levels of details. I couldn't find the one I was using some years ago ...

I have gone through all the chapters related to character devices. But the book doesnt talk about any hardware to be connected to serial port and any other ports in pc

[arne]

I have gone through all the chapters related to character devices. But the book doesnt talk about any hardware to be connected to serial port and any other ports in pc

Well, chapter 9 is talking about IO ports and how to access the
parallel port, no?

Anyway, I found it more helpful to read the code of other drivers
(if I knew that they had to do similar operations as I wanted my
driver to do). See the Linux Cross Reference.
This helped me lot.

arne