usbsevseg.c File Reference

#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/usb.h>

Go to the source code of this file.

Data Structures
struct	usb_sevsegdev

Macros
#define	DRIVER_AUTHOR   "Harrison Metzger <[email protected]>"
#define	DRIVER_DESC   "USB 7 Segment Driver"
#define	VENDOR_ID   0x0fc5
#define	PRODUCT_ID   0x1227
#define	MAXLEN   8
#define	MYDEV_ATTR_SIMPLE_UNSIGNED(name, update_fcn)

Functions
	MODULE_DEVICE_TABLE (usb, id_table)
size_t	my_memlen (const char *buf, size_t count)
	MYDEV_ATTR_SIMPLE_UNSIGNED (powered, update_display_powered)
	MYDEV_ATTR_SIMPLE_UNSIGNED (mode_msb, update_display_mode)
	MYDEV_ATTR_SIMPLE_UNSIGNED (mode_lsb, update_display_mode)
	module_usb_driver (sevseg_driver)
	MODULE_AUTHOR (DRIVER_AUTHOR)
	MODULE_DESCRIPTION (DRIVER_DESC)
	MODULE_LICENSE ("GPL")

Macro Definition Documentation

#define DRIVER_AUTHOR   "Harrison Metzger <[email protected]>"

Definition at line 22 of file usbsevseg.c.

#define DRIVER_DESC   "USB 7 Segment Driver"

Definition at line 23 of file usbsevseg.c.

#define MAXLEN   8

Definition at line 27 of file usbsevseg.c.

#define MYDEV_ATTR_SIMPLE_UNSIGNED	(		name,
			update_fcn
	)

Value:

static ssize_t show_attr_##name(struct device *dev,         \
    struct device_attribute *attr, char *buf)       \
{                               \
	struct usb_interface *intf = to_usb_interface(dev);    \
	struct usb_sevsegdev *mydev = usb_get_intfdata(intf);  \
                                \
    return sprintf(buf, "%u\n", mydev->name);       \
}                               \
                                \
static ssize_t set_attr_##name(struct device *dev,      \
    struct device_attribute *attr, const char *buf, size_t count) \
{                               \
	struct usb_interface *intf = to_usb_interface(dev);    \
	struct usb_sevsegdev *mydev = usb_get_intfdata(intf);  \
                                \
    mydev->name = simple_strtoul(buf, NULL, 10);        \
    update_fcn(mydev);                  \
                                \
    return count;                       \
}                               \
static DEVICE_ATTR(name, S_IRUGO | S_IWUSR, show_attr_##name, set_attr_##name);

Definition at line 174 of file usbsevseg.c.

#define PRODUCT_ID   0x1227

Definition at line 26 of file usbsevseg.c.

#define VENDOR_ID   0x0fc5

Definition at line 25 of file usbsevseg.c.

Function Documentation

MODULE_AUTHOR

(

DRIVER_AUTHOR

)

MODULE_DESCRIPTION

(

DRIVER_DESC

)

MODULE_DEVICE_TABLE	(	usb	,
		id_table
	)

MODULE_LICENSE

(

"GPL"

)

module_usb_driver

(

sevseg_driver

)

size_t my_memlen ( const char *  buf, size_t  count  )

inline

Definition at line 60 of file usbsevseg.c.

MYDEV_ATTR_SIMPLE_UNSIGNED	(	powered	,
		update_display_powered
	)

MYDEV_ATTR_SIMPLE_UNSIGNED	(	mode_msb	,
		update_display_mode
	)

MYDEV_ATTR_SIMPLE_UNSIGNED	(	mode_lsb	,
		update_display_mode
	)