core/newlib/device.h File Reference

#include <reent.h>
#include <errno.h>

Go to the source code of this file.

Data Structures
struct	device_table_entry_t
	Describes what is found at driver level. More...
struct	device_table_array_t
Defines
#define	SCEPTRE_STDIN   STDIN_FILENO
#define	SCEPTRE_STDOUT   STDOUT_FILENO
#define	SCEPTRE_STDERR   STDERR_FILENO
#define	SCEPTRE_UART0   3
#define	SCEPTRE_UART1   4
#define	SCEPTRE_USB   5
#define	SCEPTRE_I2C0   6
#define	SCEPTRE_I2C1   7
#define	SCEPTRE_SPI0   8
#define	SCEPTRE_SPI1   9
#define	SCEPTRE_THERMOMETER   10
#define	SCEPTRE_ACCELEROMETER   11
#define	SCEPTRE_BLUETOOTH   SCEPTRE_UART1
#define	SCEPTRE_SDCARD   13
#define	DEVICE_MAX_DESCRIPTORS   4
#define	DEVICE(D)   (D<<8)
	Device number is high byte of FILE "pointer".
#define	DEVICE_TYPE(D)   ((D>>8)&0xff)
Functions
int	device_find (struct _reent *r, uint8_t device_type)
void	device_init (void)
int	device_find_by_name (const char *p_name, int *p_len)
Variables
device_table_array_t	device_table_list [DEVICE_MAX_DESCRIPTORS]

---

Detailed Description

Low-level device driver interface.

Definition in file device.h.

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Function Documentation

int device_find	(	struct _reent *	p_reent,
		uint8_t	device_type
	)

Search the device table for a device.

Parameters:

	p_reent	Pointer to a structure that will receive the return value.
	device_type	Device type to find.

Returns:

Index of device on success, -1 if not found.

Definition at line 33 of file device.c.

int device_find_by_name	(	const char *	p_name,
		int *	p_len
	)

Search the device table for a device by name.

Parameters:

	p_name	Pointer to the device name to find.
	p_len	Length of the device name.

Returns:

Index of device on success, -1 if not found.

Definition at line 86 of file device.c.

void device_init

(

void

)

Initialize the device table.

Definition at line 58 of file device.c.