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yaml --- r: 36466 b: refs/heads/master c: 5638e4d h: refs/heads/master v: v3
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Sam Hocevar
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Greg Kroah-Hartman
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Sep 27, 2006
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refs/heads/master: 03270634e242dd10cc8569d31a00659d25b2b8e7 | ||
refs/heads/master: 5638e4d92e7707bd037a36654f914c80ccd7161d |
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/* | ||
* PlayStation 2 Trance Vibrator driver | ||
* | ||
* Copyright (C) 2006 Sam Hocevar <sam@zoy.org> | ||
* | ||
* 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. | ||
* | ||
* You should have received a copy of the GNU General Public License | ||
* along with this program; if not, write to the Free Software | ||
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
*/ | ||
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/* Standard include files */ | ||
#include <linux/kernel.h> | ||
#include <linux/errno.h> | ||
#include <linux/init.h> | ||
#include <linux/module.h> | ||
#include <linux/usb.h> | ||
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/* Version Information */ | ||
#define DRIVER_VERSION "v1.1" | ||
#define DRIVER_AUTHOR "Sam Hocevar, sam@zoy.org" | ||
#define DRIVER_DESC "PlayStation 2 Trance Vibrator driver" | ||
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#define TRANCEVIBRATOR_VENDOR_ID 0x0b49 /* ASCII Corporation */ | ||
#define TRANCEVIBRATOR_PRODUCT_ID 0x064f /* Trance Vibrator */ | ||
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static struct usb_device_id id_table [] = { | ||
{ USB_DEVICE(TRANCEVIBRATOR_VENDOR_ID, TRANCEVIBRATOR_PRODUCT_ID) }, | ||
{ }, | ||
}; | ||
MODULE_DEVICE_TABLE (usb, id_table); | ||
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/* Driver-local specific stuff */ | ||
struct trancevibrator { | ||
struct usb_device *udev; | ||
unsigned int speed; | ||
}; | ||
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static ssize_t show_speed(struct device *dev, struct device_attribute *attr, | ||
char *buf) | ||
{ | ||
struct usb_interface *intf = to_usb_interface(dev); | ||
struct trancevibrator *tv = usb_get_intfdata(intf); | ||
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return sprintf(buf, "%d\n", tv->speed); | ||
} | ||
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static ssize_t set_speed(struct device *dev, struct device_attribute *attr, | ||
const char *buf, size_t count) | ||
{ | ||
struct usb_interface *intf = to_usb_interface(dev); | ||
struct trancevibrator *tv = usb_get_intfdata(intf); | ||
int temp, retval; | ||
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temp = simple_strtoul(buf, NULL, 10); | ||
if (temp > 255) | ||
temp = 255; | ||
else if (temp < 0) | ||
temp = 0; | ||
tv->speed = temp; | ||
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dev_dbg(&tv->udev->dev, "speed = %d\n", tv->speed); | ||
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/* Set speed */ | ||
retval = usb_control_msg(tv->udev, usb_sndctrlpipe(tv->udev, 0), | ||
0x01, /* vendor request: set speed */ | ||
USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER, | ||
tv->speed, /* speed value */ | ||
0, NULL, 0, USB_CTRL_GET_TIMEOUT); | ||
if (retval) { | ||
dev_dbg(&tv->udev->dev, "retval = %d\n", retval); | ||
return retval; | ||
} | ||
return count; | ||
} | ||
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static DEVICE_ATTR(speed, S_IWUGO | S_IRUGO, show_speed, set_speed); | ||
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static int tv_probe(struct usb_interface *interface, | ||
const struct usb_device_id *id) | ||
{ | ||
struct usb_device *udev = interface_to_usbdev(interface); | ||
struct trancevibrator *dev; | ||
int retval; | ||
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dev = kzalloc(sizeof(struct trancevibrator), GFP_KERNEL); | ||
if (dev == NULL) { | ||
dev_err(&interface->dev, "Out of memory\n"); | ||
retval = -ENOMEM; | ||
goto error; | ||
} | ||
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dev->udev = usb_get_dev(udev); | ||
usb_set_intfdata(interface, dev); | ||
retval = device_create_file(&interface->dev, &dev_attr_speed); | ||
if (retval) | ||
goto error_create_file; | ||
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return 0; | ||
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error_create_file: | ||
usb_put_dev(udev); | ||
usb_set_intfdata(interface, NULL); | ||
error: | ||
kfree(dev); | ||
return retval; | ||
} | ||
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static void tv_disconnect(struct usb_interface *interface) | ||
{ | ||
struct trancevibrator *dev; | ||
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dev = usb_get_intfdata (interface); | ||
usb_set_intfdata(interface, NULL); | ||
device_remove_file(&interface->dev, &dev_attr_speed); | ||
usb_put_dev(dev->udev); | ||
kfree(dev); | ||
} | ||
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/* USB subsystem object */ | ||
static struct usb_driver tv_driver = { | ||
.name = "trancevibrator", | ||
.probe = tv_probe, | ||
.disconnect = tv_disconnect, | ||
.id_table = id_table, | ||
}; | ||
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static int __init tv_init(void) | ||
{ | ||
int retval = usb_register(&tv_driver); | ||
if (retval) { | ||
err("usb_register failed. Error number %d", retval); | ||
return retval; | ||
} | ||
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info(DRIVER_VERSION ":" DRIVER_DESC); | ||
return 0; | ||
} | ||
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static void __exit tv_exit(void) | ||
{ | ||
usb_deregister(&tv_driver); | ||
} | ||
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module_init (tv_init); | ||
module_exit (tv_exit); | ||
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MODULE_AUTHOR(DRIVER_AUTHOR); | ||
MODULE_DESCRIPTION(DRIVER_DESC); | ||
MODULE_LICENSE("GPL"); |