Add some more comments.

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@341 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
David Reid 2002-07-19 16:10:56 +00:00
parent 48377a24b0
commit 49b0a26dba

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@ -172,23 +172,23 @@ struct pci_module_info {
offsets in PCI configuration space to the elements of header type 0x01 (PCI-to-PCI bridge)
--- */
#define PCI_primary_bus 0x18
#define PCI_secondary_bus 0x19
#define PCI_subordinate_bus 0x1A
#define PCI_secondary_latency 0x1B
#define PCI_io_base 0x1C
#define PCI_io_limit 0x1D
#define PCI_secondary_status 0x1E
#define PCI_memory_base 0x20
#define PCI_memory_limit 0x22
#define PCI_prefetchable_memory_base 0x24
#define PCI_prefetchable_memory_limit 0x26
#define PCI_primary_bus 0x18 /* (1 byte) */
#define PCI_secondary_bus 0x19 /* (1 byte) */
#define PCI_subordinate_bus 0x1A /* (1 byte) */
#define PCI_secondary_latency 0x1B /* (1 byte) latency of secondary bus */
#define PCI_io_base 0x1C /* (1 byte) io base address register for 2ndry bus*/
#define PCI_io_limit 0x1D /* (1 byte) */
#define PCI_secondary_status 0x1E /* (2 bytes) */
#define PCI_memory_base 0x20 /* (2 bytes) */
#define PCI_memory_limit 0x22 /* (2 bytes) */
#define PCI_prefetchable_memory_base 0x24 /* (2 bytes) */
#define PCI_prefetchable_memory_limit 0x26 /* (2 bytes) */
#define PCI_prefetchable_memory_base_upper32 0x28
#define PCI_prefetchable_memory_limit_upper32 0x2C
#define PCI_io_base_upper16 0x30
#define PCI_io_limit_upper16 0x32
#define PCI_io_base_upper16 0x30 /* (2 bytes) */
#define PCI_io_limit_upper16 0x32 /* (2 bytes) */
#define PCI_bridge_rom_base 0x38
#define PCI_bridge_control 0x3E
#define PCI_bridge_control 0x3E /* (1 byte) */