ID macros

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

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

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)
}

Macro Definition Documentation

ID_TAG

#define ID_TAG

(

id

)

(((id) >> 16) & 0xf)

Get the tag value.

ID_VALUE

#define ID_VALUE

(

id

)

((id) & 0xffff)

Get the real id value.

MAKE_ID

#define MAKE_ID	(		tag,
			id_val
	)		((tag << 16) | (id_val))

Combine tag and id value.

TAG_EISA

#define TAG_EISA   2

EISA ids (monitors, ISA-PnP, modems, mice etc).

TAG_PCI

#define TAG_PCI   1

PCI ids.

TAG_PCMCIA

#define TAG_PCMCIA   5

PCMCIA ids.

TAG_SPECIAL

#define TAG_SPECIAL   4

Internally used ids.

TAG_USB

#define TAG_USB   3

USB ids.