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232 lines
5.7 KiB
232 lines
5.7 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* Copyright (c) 1999-2001 Vojtech Pavlik |
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* |
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* USB HIDBP Mouse support |
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*/ |
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/* |
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* |
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* Should you need to contact me, the author, you can do so either by |
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* e-mail - mail your message to <[email protected]>, or by paper mail: |
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* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic |
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*/ |
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#include <linux/kernel.h> |
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#include <linux/slab.h> |
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#include <linux/module.h> |
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#include <linux/init.h> |
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#include <linux/usb/input.h> |
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#include <linux/hid.h> |
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/* for apple IDs */ |
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#ifdef CONFIG_USB_HID_MODULE |
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#include "../hid-ids.h" |
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#endif |
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/* |
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* Version Information |
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*/ |
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#define DRIVER_VERSION "v1.6" |
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#define DRIVER_AUTHOR "Vojtech Pavlik <[email protected]>" |
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#define DRIVER_DESC "USB HID Boot Protocol mouse driver" |
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MODULE_AUTHOR(DRIVER_AUTHOR); |
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MODULE_DESCRIPTION(DRIVER_DESC); |
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MODULE_LICENSE("GPL"); |
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struct usb_mouse { |
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char name[128]; |
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char phys[64]; |
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struct usb_device *usbdev; |
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struct input_dev *dev; |
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struct urb *irq; |
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signed char *data; |
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dma_addr_t data_dma; |
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}; |
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static void usb_mouse_irq(struct urb *urb) |
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{ |
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struct usb_mouse *mouse = urb->context; |
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signed char *data = mouse->data; |
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struct input_dev *dev = mouse->dev; |
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int status; |
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switch (urb->status) { |
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case 0: /* success */ |
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break; |
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case -ECONNRESET: /* unlink */ |
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case -ENOENT: |
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case -ESHUTDOWN: |
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return; |
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/* -EPIPE: should clear the halt */ |
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default: /* error */ |
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goto resubmit; |
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} |
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input_report_key(dev, BTN_LEFT, data[0] & 0x01); |
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input_report_key(dev, BTN_RIGHT, data[0] & 0x02); |
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input_report_key(dev, BTN_MIDDLE, data[0] & 0x04); |
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input_report_key(dev, BTN_SIDE, data[0] & 0x08); |
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input_report_key(dev, BTN_EXTRA, data[0] & 0x10); |
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input_report_rel(dev, REL_X, data[1]); |
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input_report_rel(dev, REL_Y, data[2]); |
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input_report_rel(dev, REL_WHEEL, data[3]); |
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input_sync(dev); |
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resubmit: |
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status = usb_submit_urb (urb, GFP_ATOMIC); |
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if (status) |
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dev_err(&mouse->usbdev->dev, |
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"can't resubmit intr, %s-%s/input0, status %d\n", |
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mouse->usbdev->bus->bus_name, |
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mouse->usbdev->devpath, status); |
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} |
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static int usb_mouse_open(struct input_dev *dev) |
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{ |
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struct usb_mouse *mouse = input_get_drvdata(dev); |
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mouse->irq->dev = mouse->usbdev; |
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if (usb_submit_urb(mouse->irq, GFP_KERNEL)) |
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return -EIO; |
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return 0; |
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} |
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static void usb_mouse_close(struct input_dev *dev) |
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{ |
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struct usb_mouse *mouse = input_get_drvdata(dev); |
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usb_kill_urb(mouse->irq); |
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} |
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static int usb_mouse_probe(struct usb_interface *intf, const struct usb_device_id *id) |
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{ |
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struct usb_device *dev = interface_to_usbdev(intf); |
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struct usb_host_interface *interface; |
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struct usb_endpoint_descriptor *endpoint; |
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struct usb_mouse *mouse; |
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struct input_dev *input_dev; |
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int pipe, maxp; |
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int error = -ENOMEM; |
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interface = intf->cur_altsetting; |
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if (interface->desc.bNumEndpoints != 1) |
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return -ENODEV; |
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endpoint = &interface->endpoint[0].desc; |
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if (!usb_endpoint_is_int_in(endpoint)) |
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return -ENODEV; |
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pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress); |
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maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe)); |
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mouse = kzalloc(sizeof(struct usb_mouse), GFP_KERNEL); |
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input_dev = input_allocate_device(); |
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if (!mouse || !input_dev) |
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goto fail1; |
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mouse->data = usb_alloc_coherent(dev, 8, GFP_ATOMIC, &mouse->data_dma); |
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if (!mouse->data) |
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goto fail1; |
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mouse->irq = usb_alloc_urb(0, GFP_KERNEL); |
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if (!mouse->irq) |
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goto fail2; |
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mouse->usbdev = dev; |
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mouse->dev = input_dev; |
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if (dev->manufacturer) |
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strlcpy(mouse->name, dev->manufacturer, sizeof(mouse->name)); |
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if (dev->product) { |
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if (dev->manufacturer) |
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strlcat(mouse->name, " ", sizeof(mouse->name)); |
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strlcat(mouse->name, dev->product, sizeof(mouse->name)); |
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} |
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if (!strlen(mouse->name)) |
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snprintf(mouse->name, sizeof(mouse->name), |
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"USB HIDBP Mouse %04x:%04x", |
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le16_to_cpu(dev->descriptor.idVendor), |
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le16_to_cpu(dev->descriptor.idProduct)); |
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usb_make_path(dev, mouse->phys, sizeof(mouse->phys)); |
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strlcat(mouse->phys, "/input0", sizeof(mouse->phys)); |
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input_dev->name = mouse->name; |
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input_dev->phys = mouse->phys; |
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usb_to_input_id(dev, &input_dev->id); |
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input_dev->dev.parent = &intf->dev; |
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input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); |
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input_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) | |
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BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_MIDDLE); |
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input_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y); |
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input_dev->keybit[BIT_WORD(BTN_MOUSE)] |= BIT_MASK(BTN_SIDE) | |
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BIT_MASK(BTN_EXTRA); |
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input_dev->relbit[0] |= BIT_MASK(REL_WHEEL); |
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input_set_drvdata(input_dev, mouse); |
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input_dev->open = usb_mouse_open; |
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input_dev->close = usb_mouse_close; |
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usb_fill_int_urb(mouse->irq, dev, pipe, mouse->data, |
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(maxp > 8 ? 8 : maxp), |
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usb_mouse_irq, mouse, endpoint->bInterval); |
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mouse->irq->transfer_dma = mouse->data_dma; |
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mouse->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; |
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error = input_register_device(mouse->dev); |
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if (error) |
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goto fail3; |
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usb_set_intfdata(intf, mouse); |
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return 0; |
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fail3: |
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usb_free_urb(mouse->irq); |
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fail2: |
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usb_free_coherent(dev, 8, mouse->data, mouse->data_dma); |
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fail1: |
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input_free_device(input_dev); |
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kfree(mouse); |
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return error; |
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} |
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static void usb_mouse_disconnect(struct usb_interface *intf) |
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{ |
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struct usb_mouse *mouse = usb_get_intfdata (intf); |
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usb_set_intfdata(intf, NULL); |
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if (mouse) { |
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usb_kill_urb(mouse->irq); |
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input_unregister_device(mouse->dev); |
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usb_free_urb(mouse->irq); |
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usb_free_coherent(interface_to_usbdev(intf), 8, mouse->data, mouse->data_dma); |
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kfree(mouse); |
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} |
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} |
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static const struct usb_device_id usb_mouse_id_table[] = { |
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{ USB_INTERFACE_INFO(USB_INTERFACE_CLASS_HID, USB_INTERFACE_SUBCLASS_BOOT, |
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USB_INTERFACE_PROTOCOL_MOUSE) }, |
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{ } /* Terminating entry */ |
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}; |
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MODULE_DEVICE_TABLE (usb, usb_mouse_id_table); |
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static struct usb_driver usb_mouse_driver = { |
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.name = "usbmouse", |
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.probe = usb_mouse_probe, |
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.disconnect = usb_mouse_disconnect, |
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.id_table = usb_mouse_id_table, |
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}; |
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module_usb_driver(usb_mouse_driver);
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