libhd  5.0
Defines
ID macros
Public interface

Macros to handle device and vendor ids. More...

Defines

#define TAG_PCI   1
 PCI ids.
#define TAG_EISA   2
 EISA ids (monitors, ISA-PnP, modems, mice etc).
#define TAG_USB   3
 USB ids.
#define TAG_SPECIAL   4
 Internally used ids.
#define TAG_PCMCIA   5
 PCMCIA ids.
#define ID_VALUE(id)   ((id) & 0xffff)
 Get the real id value.
#define ID_TAG(id)   (((id) >> 16) & 0xf)
 Get the tag value.
#define MAKE_ID(tag, id_val)   ((tag << 16) | (id_val))
 Combine tag and id value.

Detailed Description

Macros to handle device and vendor ids.

Example: to check if an id is a pci id and get its value, do something like this:

 if(ID_TAG(hd->dev) == TAG_PCI) {
   pci_id = ID_VALUE(hd->dev)
 }

Define Documentation

#define ID_TAG (   id)    (((id) >> 16) & 0xf)
#define ID_VALUE (   id)    ((id) & 0xffff)
#define MAKE_ID (   tag,
  id_val 
)    ((tag << 16) | (id_val))
#define TAG_EISA   2
#define TAG_PCI   1
#define TAG_PCMCIA   5

PCMCIA ids.

Referenced by hd_scan_xtra(), parse_id(), pcmcia_read_data(), and vend_id2str().

#define TAG_SPECIAL   4
#define TAG_USB   3