pci tv card

[shanehelms at eircom.net]

hello everybody,

ive installed rtems on my redhat. id like to write drivers for my pci tv card on it.

target and host are PII pc386.

couple of questions:
1. is there any concept of kernel and user mode in rtems or is it all in kernel mode?
2. im lost with the concept of region and partition, how can i read/write/copy to memory (ie something like memcpy function in linux)
3. how can i write/read register value of a pci device ?

what would be a good pci device driver example for me to start on ?

where should i start from and what documents should i read ?

regards,

Shane Helms