HELP:porting linux PXA audio driver to RTLinux(RTLinux core driver)

Dear Friends, I am trying to port Linux PXA audio driver to RTLinux. I am using pxa-ac7.c and pxa-audio.c and eliminated sound_core.c, and i will register two device /dev/mixer and /dev/dsp to RTLinux kernel. The real need is, i wants to generate a sin wave using audio c

HELP:(VIPER BOARD)AC'97 controller driver for rtlinux(rtlinux core driver)

Dear friends, I am trying to develop a codec driver (rtlinux driver) from scratch. In Viper board (PXA255) physical memory range 0x4000-0x43FF is used by the PXA255 peripherals.In that address range 0x4050-0x405005FC is needed for AC'97 controller registers. Is this memory range is alr

HELP: PC104 IO card driver Problem

Dear Friends, Can anybody Help me in this Pc104 driver Problem; What is the basics steps in doing read and write on Pc104 cards. Deatails Given Below: I am writing a Linux device driver for Diamond systems IR104 digital IO card. This is a PC104 bus device(that means it ISA bus compa