usbtmc.c File Reference

#include <linux/init.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/fs.h>
#include <linux/uaccess.h>
#include <linux/kref.h>
#include <linux/slab.h>
#include <linux/mutex.h>
#include <linux/usb.h>
#include <linux/usb/tmc.h>

Go to the source code of this file.

Data Structures
struct	usbtmc_dev_capabilities
struct	usbtmc_device_data

Macros
#define	USBTMC_MINOR_BASE   176
#define	USBTMC_SIZE_IOBUFFER   2048
#define	USBTMC_TIMEOUT   5000
#define	USBTMC_MAX_READS_TO_CLEAR_BULK_IN   100
#define	to_usbtmc_data(d)   container_of(d, struct usbtmc_device_data, kref)
#define	capability_attribute(name)
#define	data_attribute(name)

Functions
	MODULE_DEVICE_TABLE (usb, usbtmc_devices)
	capability_attribute (interface_capabilities)
	capability_attribute (device_capabilities)
	capability_attribute (usb488_interface_capabilities)
	capability_attribute (usb488_device_capabilities)
	data_attribute (TermCharEnabled)
	data_attribute (auto_abort)
	module_usb_driver (usbtmc_driver)
	MODULE_LICENSE ("GPL")

Macro Definition Documentation

#define capability_attribute

(

name

)

Value:

static ssize_t show_##name(struct device *dev,              \
               struct device_attribute *attr, char *buf)    \
{                                   \
	struct usb_interface *intf = to_usb_interface(dev);        \
	struct usbtmc_device_data *data = usb_get_intfdata(intf);  \
                                    \
    return sprintf(buf, "%d\n", data->capabilities.name);       \
}                                   \
static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL)

Definition at line 808 of file usbtmc.c.

#define data_attribute

(

name

)

Value:

static ssize_t show_##name(struct device *dev,              \
               struct device_attribute *attr, char *buf)    \
{                                   \
	struct usb_interface *intf = to_usb_interface(dev);        \
	struct usbtmc_device_data *data = usb_get_intfdata(intf);  \
                                    \
    return sprintf(buf, "%d\n", data->name);            \
}                                   \
static ssize_t store_##name(struct device *dev,             \
                struct device_attribute *attr,      \
                const char *buf, size_t count)      \
{                                   \
	struct usb_interface *intf = to_usb_interface(dev);        \
	struct usbtmc_device_data *data = usb_get_intfdata(intf);  \
	ssize_t result;                            \
    unsigned val;                           \
                                    \
    result = sscanf(buf, "%u\n", &val);             \
    if (result != 1)                        \
        result = -EINVAL;                   \
	data->name = val;                      \
    if (result < 0)                         \
        return result;                      \
    else                                \
        return count;                       \
}                                   \
static DEVICE_ATTR(name, S_IRUGO, show_##name, store_##name)

Definition at line 859 of file usbtmc.c.

#define to_usbtmc_data

(

d

)

container_of(d, struct usbtmc_device_data, kref)

Definition at line 98 of file usbtmc.c.

#define USBTMC_MAX_READS_TO_CLEAR_BULK_IN   100

Definition at line 50 of file usbtmc.c.

#define USBTMC_MINOR_BASE   176

drivers/usb/class/usbtmc.c - USB Test & Measurement class driver

Copyright (C) 2007 Stefan Kopp, Gechingen, Germany Copyright (C) 2008 Novell, Inc. Copyright (C) 2008 Greg Kroah-Hartman gregk.nosp@m.h@su.nosp@m.se.de

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

The GNU General Public License is available at http://www.gnu.org/copyleft/gpl.html.

Definition at line 34 of file usbtmc.c.

#define USBTMC_SIZE_IOBUFFER   2048

Definition at line 40 of file usbtmc.c.

#define USBTMC_TIMEOUT   5000

Definition at line 43 of file usbtmc.c.

Function Documentation

capability_attribute

(

interface_capabilities

)

capability_attribute

(

device_capabilities

)

capability_attribute

(

usb488_interface_capabilities

)

capability_attribute

(

usb488_device_capabilities

)

data_attribute

(

TermCharEnabled

)

data_attribute

(

auto_abort

)

MODULE_DEVICE_TABLE	(	usb	,
		usbtmc_devices
	)

MODULE_LICENSE

(

"GPL"

)

module_usb_driver

(

usbtmc_driver

)