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Kirill Smelkov
linux
Commits
7a3156f2
Commit
7a3156f2
authored
May 06, 2003
by
Greg Kroah-Hartman
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[PATCH] USB: converted usblcd over to new usb_register_dev() changes.
parent
81897611
Changes
1
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1 changed file
with
12 additions
and
4 deletions
+12
-4
drivers/usb/misc/usblcd.c
drivers/usb/misc/usblcd.c
+12
-4
No files found.
drivers/usb/misc/usblcd.c
View file @
7a3156f2
...
...
@@ -34,7 +34,6 @@
struct
lcd_usb_data
{
struct
usb_device
*
lcd_dev
;
/* init: probe_lcd */
unsigned
int
ifnum
;
/* Interface number of the USB device */
int
minor
;
/* minor number for this device */
int
isopen
;
/* nz if open */
int
present
;
/* Device is present on the bus */
char
*
obuf
,
*
ibuf
;
/* transfer buffers */
...
...
@@ -245,6 +244,13 @@ file_operations usb_lcd_fops = {
.
release
=
close_lcd
,
};
static
struct
usb_class_driver
usb_lcd_class
=
{
.
name
=
"usb/lcd%d"
,
.
fops
=
&
usb_lcd_fops
,
.
mode
=
S_IFCHR
|
S_IRUSR
|
S_IWUSR
|
S_IRGRP
|
S_IWGRP
,
.
minor_base
=
USBLCD_MINOR
,
};
static
int
probe_lcd
(
struct
usb_interface
*
intf
,
const
struct
usb_device_id
*
id
)
{
struct
usb_device
*
dev
=
interface_to_usbdev
(
intf
);
...
...
@@ -268,23 +274,25 @@ static int probe_lcd(struct usb_interface *intf, const struct usb_device_id *id)
(
i
&
0xF000
)
>>
12
,(
i
&
0xF00
)
>>
8
,(
i
&
0xF0
)
>>
4
,(
i
&
0xF
),
dev
->
devnum
);
retval
=
usb_register_dev
(
&
usb_lcd_fops
,
USBLCD_MINOR
,
1
,
&
lcd
->
minor
);
retval
=
usb_register_dev
(
intf
,
&
usb_lcd_class
);
if
(
retval
)
{
err
(
"Not able to get a minor for this device."
);
return
-
ENOMEM
;
}
lcd
->
present
=
1
;
lcd
->
lcd_dev
=
dev
;
if
(
!
(
lcd
->
obuf
=
(
char
*
)
kmalloc
(
OBUF_SIZE
,
GFP_KERNEL
)))
{
err
(
"probe_lcd: Not enough memory for the output buffer"
);
usb_deregister_dev
(
intf
,
&
usb_lcd_class
);
return
-
ENOMEM
;
}
dbg
(
"probe_lcd: obuf address:%p"
,
lcd
->
obuf
);
if
(
!
(
lcd
->
ibuf
=
(
char
*
)
kmalloc
(
IBUF_SIZE
,
GFP_KERNEL
)))
{
err
(
"probe_lcd: Not enough memory for the input buffer"
);
usb_deregister_dev
(
intf
,
&
usb_lcd_class
);
kfree
(
lcd
->
obuf
);
return
-
ENOMEM
;
}
...
...
@@ -300,7 +308,7 @@ static void disconnect_lcd(struct usb_interface *intf)
usb_set_intfdata
(
intf
,
NULL
);
if
(
lcd
)
{
usb_deregister_dev
(
1
,
lcd
->
minor
);
usb_deregister_dev
(
intf
,
&
usb_lcd_class
);
if
(
lcd
->
isopen
)
{
lcd
->
isopen
=
0
;
...
...
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