SD Card interfacing
 

Hi,

We are in a big trouble. We are trying to develope driver for sd card for ARM. But it doesn't respond to the commands. How could I see the device driver written for PC so that I may be able to understand the basic ideas of sd interfacing.
Thank you.

How do you connect your SDCard to the system. If it's through SPI, you can have a look at "blackfin.uclinux.org" where there's a driver for this purpose. If I well remember, there's two layers for the driver: the SPI driver which must be the most arch dependent and the SDCard part, the "protocol" to use for accessing your SDCard. When i was working with blackfin, the SPI layer began to be integrated into the mainline kernel...