Entry | |
---|---|
R1 | Pointer to buffer |
R2 | Number of bytes to read (4-256, must be multiple of 4) |
R3 | Function handle |
Exit | |
---|---|
R1 | Buffer updated |
R2 | Preserved ? |
R3 | Preserved ? |
The purpose of this call is to read as much of the header as requested, rather than the limited information returned by PCI_ReadID.