nvram_64.c File Reference

#include <linux/module.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/miscdevice.h>
#include <linux/fcntl.h>
#include <linux/nvram.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <asm/uaccess.h>
#include <asm/nvram.h>
#include <asm/rtas.h>
#include <asm/prom.h>
#include <asm/machdep.h>

Go to the source code of this file.

Data Structures
struct	nvram_header
struct	nvram_partition

Macros
#define	NVRAM_HEADER_LEN   sizeof(struct nvram_header)
#define	NVRAM_BLOCK_LEN   NVRAM_HEADER_LEN

Functions
: name of the partition to remove, or NULL for a
nvram_remove_partition - Remove one or more partitions in nvram signature only match : signature of the partition(s) to remove : When removing all partitions with a matching signature, leave these alone.
int __init	nvram_remove_partition (const char *name, int sig, const char *exceptions[])
: name of the partition to create
nvram_create_partition - Create a partition in nvram : signature of the partition to create : size of data to allocate in bytes : minimum acceptable size (0 means req_size) Returns a negative error code or a positive nvram index of the beginning of the data area of the newly created partition. If you provided a min_size smaller than req_size you need to query for the actual size yourself after the call using nvram_partition_get_size().
loff_t __init	nvram_create_partition (const char *name, int sig, int req_size, int min_size)
int	nvram_get_partition_size (loff_t data_index)
: Name of the partition or NULL for any name
nvram_find_partition - Find an nvram partition by signature and name : Signature to test against : if non-NULL, returns the size of the data part of the partition
loff_t	nvram_find_partition (const char *name, int sig, int *out_size)
int __init	nvram_scan_partitions (void)
void __exit	nvram_cleanup (void)
	module_init (nvram_init)
	module_exit (nvram_cleanup)
	MODULE_LICENSE ("GPL")

Variables
struct file_operations	nvram_fops

Macro Definition Documentation

#define NVRAM_BLOCK_LEN   NVRAM_HEADER_LEN

Definition at line 38 of file nvram_64.c.

#define NVRAM_HEADER_LEN   sizeof(struct nvram_header)

Definition at line 37 of file nvram_64.c.

Function Documentation

module_exit

(

nvram_cleanup

)

module_init

(

nvram_init

)

MODULE_LICENSE

(

"GPL"

)

void __exit nvram_cleanup

(

void

)

Definition at line 557 of file nvram_64.c.

loff_t __init nvram_create_partition	(	const char *	name,
		int	sig,
		int	req_size,
		int	min_size
	)

Definition at line 329 of file nvram_64.c.

loff_t nvram_find_partition	(	const char *	name,
		int	sig,
		int *	out_size
	)

Definition at line 451 of file nvram_64.c.

int nvram_get_partition_size

(

loff_t

data_index

)

nvram_get_partition_size - Get the data size of an nvram partition : This is the offset of the start of the data of the partition. The same value that is returned by nvram_create_partition().

Definition at line 433 of file nvram_64.c.

int __init nvram_remove_partition	(	const char *	name,
		int	sig,
		const char *	exceptions[]
	)

Definition at line 271 of file nvram_64.c.

int __init nvram_scan_partitions

(

void

)

Definition at line 467 of file nvram_64.c.

Variable Documentation

struct file_operations nvram_fops

Initial value:

= {
    .owner      = THIS_MODULE,
    .llseek     = dev_nvram_llseek,
    .read       = dev_nvram_read,
    .write      = dev_nvram_write,
    .unlocked_ioctl = dev_nvram_ioctl,
}

Definition at line 182 of file nvram_64.c.