OSDev.org

Hi

I've gotten to a point where I have paging enabled, finally. The next step would be to write the disk and filesystem drivers. I've read trough most of the ATA PIO article on the wiki, and I have a question now.. Is there a complete structure for data returned by the IDENTIFY command? What other data, besides the stuff listed here does it return?

There is a lot of information in there. Just read the section on IDENTIFY in the ACS-3 spec, it has a long table that describes each word in the IDENTIFY data. Starting to read the spec instead of relying only on secondary sources like the wiki is a good idea anyway as soon as you get to non-trivial hardware like IDE.

K, that table is loong. Is there a drop-in structure for loading this into, or how would anyone efficiently load the 256 words into something useable?

makerimages wrote:or how would anyone efficiently load the 256 words into something useable?

Defining that packed struct as appropriate. It's probably faster than finding one you can reuse without copyright issues.