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Werner Sembach
AndroidKernelMSM
Commits
1df03d1a
Commit
1df03d1a
authored
6 years ago
by
Werner Sembach
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Make use of misc_register() to clean up the code
parent
d9ea7207
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1 changed file
drivers/klist/klist.c
+10
-26
10 additions, 26 deletions
drivers/klist/klist.c
with
10 additions
and
26 deletions
drivers/klist/klist.c
+
10
−
26
View file @
1df03d1a
...
...
@@ -11,9 +11,9 @@
#include
<linux/uaccess.h>
#include
<linux/tty.h>
#include
<asm/errno.h>
#include
<linux/device.h>
#include
<linux/kdev_t.h>
#include
<linux/miscdevice.h>
#define ERR(...) printk(KERN_ERR __VA_ARGS__)
/* #define DEBUG */
#ifdef DEBUG
...
...
@@ -22,8 +22,6 @@
#define LOG(...)
#endif
#define ERR(...) printk(KERN_ERR __VA_ARGS__)
/* klist functions */
#define LIST_CMD 0x1337
#define LIST_ADD (LIST_CMD + 0)
...
...
@@ -35,8 +33,6 @@
/* consts */
#define MAX_SIZE 0x400
static
struct
class
*
cl
;
static
long
k_list
[
MAX_SIZE
];
static
unsigned
long
list_size
;
...
...
@@ -172,38 +168,26 @@ struct file_operations list_fops = {
unlocked_ioctl:
list_ioctl
,
};
static
struct
miscdevice
klist
=
{
.
minor
=
MISC_DYNAMIC_MINOR
,
.
name
=
"klist"
,
.
fops
=
&
list_fops
,
};
static
int
__init
init_list
(
void
)
{
int
ret
;
ret
=
register
_chrdev
(
1337
,
"klist"
,
&
list_fops
);
ret
=
misc_
register
(
&
klist
);
LOG
(
"register device: %d
\n
"
,
ret
);
list_size
=
0
;
if
(
ret
)
{
ERR
(
"register device failed."
);
return
ret
;
}
//automatically populate /sys/class/ and create /dev/klist on module startup
cl
=
class_create
(
THIS_MODULE
,
"klist"
);
if
(
IS_ERR
(
cl
))
{
ERR
(
"automatic /dev/klist creation failed on class_create."
);
return
ret
;
}
if
(
IS_ERR
(
device_create
(
cl
,
NULL
,
MKDEV
(
1337
,
0
),
NULL
,
"klist"
)))
{
ERR
(
"automatic /dev/klist creation failed on class_create."
);
class_destroy
(
cl
);
return
ret
;
}
return
ret
;
}
static
void
__exit
exit_list
(
void
)
{
device_destroy
(
cl
,
MKDEV
(
1337
,
0
));
class_destroy
(
cl
);
unregister_chrdev
(
1337
,
"klist"
);
misc_deregister
(
&
klist
);
LOG
(
"exit.
\n
"
);
}
...
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