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_NUTDEVICE Struct Reference
[XgDevice, XgDevice]

Device structure. More...

#include <sys/device.h>

Data Fields
NUTDEVICE *	dev_next
	Link to the next device structure.
u_char	dev_name [9]
	Unique device name.
u_char	dev_type
	Type of interface.
u_short	dev_base
	Hardware base address.
u_char	dev_irq
	Interrupt registration number.
void *	dev_icb
	Interface control block.
void *	dev_dcb
	Driver control block.
int(*	dev_init )(NUTDEVICE *)
	Driver initialization routine.
int(*	dev_ioctl )(NUTDEVICE *, int, void *)
	Driver control function.

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Detailed Description

Device structure.

Examples:

adds/app/keys.

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Field Documentation

u_short _NUTDEVICE::dev_base

Hardware base address. Will be set by calling NutRegisterDevice(). On some device drivers this address may be fixed.

void* _NUTDEVICE::dev_dcb

Driver control block. Points to a device specific information block.

void* _NUTDEVICE::dev_icb

Interface control block. With stream devices, this points to the IFSTREAM structure and with network devices this is a pointer to the IFNET structure.

int(* _NUTDEVICE::dev_init)(NUTDEVICE *)

Driver initialization routine. With stream devices this is called during NutDeviceOpen(). For network devices this routine is called within NutNetIfConfig().

int(* _NUTDEVICE::dev_ioctl)(NUTDEVICE *, int, void *)

Driver control function. Used to modify or query device specific settings.

u_char _NUTDEVICE::dev_irq

Interrupt registration number. Will be set by calling NutRegisterDevice(). On some device drivers the interrupt may be fixed.

u_char _NUTDEVICE::dev_type

Type of interface. May be any of the following: IFTYP_RAM IFTYP_ROM IFTYP_STREAM IFTYP_NET

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The documentation for this struct was generated from the following file:

• device.h

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