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Kirill Smelkov
linux
Commits
e91c473f
Commit
e91c473f
authored
Jun 20, 2003
by
Neil Brown
Committed by
Vojtech Pavlik
Jun 20, 2003
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Plain Diff
input: Three fixes for the uinput userspace input device driver.
parent
2ce738e0
Changes
1
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Inline
Side-by-side
Showing
1 changed file
with
3 additions
and
2 deletions
+3
-2
drivers/input/misc/uinput.c
drivers/input/misc/uinput.c
+3
-2
No files found.
drivers/input/misc/uinput.c
View file @
e91c473f
...
...
@@ -49,11 +49,11 @@ static int uinput_dev_event(struct input_dev *dev, unsigned int type, unsigned i
udev
=
(
struct
uinput_device
*
)
dev
->
private
;
udev
->
head
=
(
udev
->
head
+
1
)
%
UINPUT_BUFFER_SIZE
;
udev
->
buff
[
udev
->
head
].
type
=
type
;
udev
->
buff
[
udev
->
head
].
code
=
code
;
udev
->
buff
[
udev
->
head
].
value
=
value
;
do_gettimeofday
(
&
udev
->
buff
[
udev
->
head
].
time
);
udev
->
head
=
(
udev
->
head
+
1
)
%
UINPUT_BUFFER_SIZE
;
wake_up_interruptible
(
&
udev
->
waitq
);
...
...
@@ -82,6 +82,7 @@ static int uinput_create_device(struct uinput_device *udev)
udev
->
dev
->
event
=
uinput_dev_event
;
udev
->
dev
->
upload_effect
=
uinput_dev_upload_effect
;
udev
->
dev
->
erase_effect
=
uinput_dev_erase_effect
;
udev
->
dev
->
private
=
udev
;
init_waitqueue_head
(
&
(
udev
->
waitq
));
...
...
@@ -264,7 +265,7 @@ static ssize_t uinput_read(struct file *file, char *buffer, size_t count, loff_t
return
-
ENODEV
;
while
((
udev
->
head
!=
udev
->
tail
)
&&
(
retval
+
sizeof
(
struct
uinput_device
)
<=
count
))
{
(
retval
+
sizeof
(
struct
input_event
)
<=
count
))
{
if
(
copy_to_user
(
buffer
+
retval
,
&
(
udev
->
buff
[
udev
->
tail
]),
sizeof
(
struct
input_event
)))
return
-
EFAULT
;
udev
->
tail
=
(
udev
->
tail
+
1
)
%
UINPUT_BUFFER_SIZE
;
...
...
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