// drivers\hid\usbhid\usbmouse.c#include "linux/kernel.h"#include "linux/slab.h"#include "linux/module.h"#include "linux/init.h"#include "linux/usb/input.h"#include "linux/hid.h"static struct input_dev *uk_dev;static char *usb_buf;static dma_addr_t usb_buf_phys;static int len;static struct urb *uk_urb;static struct usb_device_id usbmouse_as_key_id_table [] = {{ USB_INTERFACE_INFO(USB_INTERFACE_CLASS_HID, USB_INTERFACE_SUBCLASS_BOOT,USB_INTERFACE_PROTOCOL_MOUSE) },//{USB_DEVICE(0x1234,0x5678)}, //表示USB设备驱动程序只支持某个厂家生产的某个产品{ } // Terminating entry};static void usbmouse_as_key_irq(struct urb *urb){static unsigned char pre_val;#if 0int i;static int cnt = 0;printk("data cnt %d: ", ++cnt);for (i = 0; i < len; i++){printk("x ", usb_buf[i]);}printk("\n");#endif// USB鼠标数据含义* data[0]: bit0-左键, 1-按下, 0-松开* bit1-右键, 1-按下, 0-松开* bit2-中键, 1-按下, 0-松开*//if ((pre_val & (1<<0)) != (usb_buf[0] & (1<<0))){// 左键发生了变化input_event(uk_dev, EV_KEY, KEY_L, (usb_buf[0] & (1<<0)) ? 1 : 0);input_sync(uk_dev);}if ((pre_val & (1<<1)) != (usb_buf[0] & (1<<1))){// 右键发生了变化input_event(uk_dev, EV_KEY, KEY_S, (usb_buf[0] & (1<<1)) ? 1 : 0);input_sync(uk_dev);}if ((pre_val & (1<<2)) != (usb_buf[0] & (1<<2))){// 中键发生了变化input_event(uk_dev, EV_KEY, KEY_ENTER, (usb_buf[0] & (1<<2)) ? 1 : 0);input_sync(uk_dev);