1、下面是写的一个无线或是有线鼠标测试程序
注：有线鼠标插入linux系统中是会在/dev目录下创建一个event0文件，但是无线鼠标插上后会有两个设备文件，一个是event0,另一个是event1;
/********************************************************************************* * Copyright: (C) 2014 fulinux<fulinux@sina.com> * All rights reserved. * * Filename: mice_test.c * Description: This file * * Version: 1.0.0(01/23/2014~) * Author: fulinux <fulinux@sina.com> * ChangeLog: 1, Release initial version on "01/23/2014 09:43:04 PM" * ********************************************************************************/#include <stdio.h>#include <stdlib.h>#include <string.h>#include <fcntl.h>#include <unistd.h>#include <errno.h>#include <sys/stat.h>#include <sys/types.h>#include <sys/time.h>#include <sys/mman.h>#include <sys/ioctl.h>#include <linux/input.h>#define WIRELESS_MOUSE#ifdef WIRELESS_MOUSE #define DEV_MOUSE "/dev/event1"#else #define DEV_MOUSE "/dev/event0"#endifstruct mousedev_motion{ int dx, dy, dz; unsigned long buttons; unsigned short abs_x; unsigned short abs_y;}event;typedef struct mouse_data{ unsigned char key; signed short x; signed short y; signed short z; unsigned short ax; unsigned short ay;}MOUSE_DATA;/******************************************************************************** * Description: * Input Args: * Output Args: * Return Value: ********************************************************************************/int main (int argc, char **argv){ int fd; MOUSE_DATA pdata; if((fd = open(DEV_MOUSE, O_RDONLY)) < 0) { printf ("open mice device failed!\n"); exit(1); } while(1) { int ret; ret = read(fd, &event, sizeof(struct mousedev_motion)); if(ret < 0) { printf ("read mouse failed\n"); exit(1); } else { pdata.key = (event.buttons & 0x7); pdata.x = (short)event.dx; pdata.y = (short)-event.dy; pdata.z = (short)event.dz; /* absolute coordinates */ pdata.ax = event.abs_x; pdata.ay = event.abs_y; printf ("key = 0x%02x x = 0x%02x, y = 0x%02x, z = 0x%02x\n", (char)pdata.key, (char)pdata.x, (char)pdata.y, (char)pdata.z); } } return 0;} /* ----- End of main() ----- */
2、下面是一个makefile文件：
注：如果你的ARCH不是arn，还有CROSS_COMPILE不是下面的那个，请修改。
#*********************************************************************************# Copyright: (C) 2011 China Undergraduate Embedded League(CUEL)# All rights reserved.## Filename: Makefile# Description: This Makefile used to compile all the C source code file in current # folder to respective excutable binary files.# # Version: 1.0.0(1/24/2014)# Author: fulinux<fulinux@gmail.com># ChangeLog: 1, Release initial version on "1/24/2014 12:29:33 PM"# #********************************************************************************/PWD=$(shell pwd)INSTPATH=/mnt/nfs#ARCH?=i386ARCH?=armLINK_MODE=STATICMODE=PRODUCTIONDEBUG=1#LDFLAGS+=-lpthreadCFLAGS+=-Wall -Werrorifeq ("${MODE}", "PRODUCTION") CFLAGS+=-DPRODUCTION_MODEendififdef DEBUG CFLAGS+=-g -DDEBUGendifCOMPILE_DATE=$(shell date -u +"%Y-%m-%d %H:%M")VPATH= .SRCS = $(wildcard ${VPATH}/*.c)OBJS = $(patsubst %.c,%.o,$(SRCS))TMP=$(shell echo $(ARCH) | tr "[A-Z]" "[a-z]")ifneq (,$(filter i386,$(TMP))) CROSS_COMPILE=else CROSS_COMPILE=arm-hisiv100nptl-linux-endifCFLAGS+=-I`dirname ${PWD}`export CC=${CROSS_COMPILE}gccexport CXX=${CROSS_COMPILE}gccexport AR=${CROSS_COMPILE}arexport AS=${CROSS_COMPILE}asexport RANLIB=${CROSS_COMPILE}ranlibexport STRIP=${CROSS_COMPILE}stripexport CFLAGSexport LDFLAGSexport ARCH export LINK_MODEifeq ("${LINK_MODE}", "STATIC") CFLAGS+=--static LDFLAGS+=-staticelse LDFLAGS+=-ldlendifSRCFILES = $(wildcard *.c)BINARIES=$(SRCFILES:%.c=%)all: entry version binaries installentry: @echo " "; @echo " ========================================================="; @echo " ** Compile \&;${BINARIES}\&; for ${ARCH} "; @echo " =========================================================";version: @echo "/* Generated by makefile, don't Edit it by hand */" > version.h @echo "#define DATE \&;$(COMPILE_DATE)\&;" >> version.h @echo "#define MAJOR 1" >>version.h @echo "#define MINOR 0" >>version.h @echo "#define REVER 0" >>version.h @if [ -f .svn/entries ] ; then \ echo "#define SVNVER `sed -n -e 11p .svn/entries`" >>version.h; \ else \ echo "#define SVNVER 0" >>version.h; \ fi;binaries: ${BINARIES} @echo " Compile over"%: %.c $(CC) -o $@ $< $(CFLAGS)tag: @ctags --c-kinds=+defglmnstuvx --langmap=c:.c.h.ho.hem.het.hec.hev.him.hit.hic.hiv -R . @cscope -Rbqinstall: cp $(BINARIES) ${INSTPATH}clean: @rm -f version.h @rm -f *.o $(BINARIES) @rm -rf *.gdb *.a *.so *.elf*distclean: clean @rm -f tags cscope*.PHONY: clean entry
3、下面是一个测试效果：
# cat /proc/bus/input/devicesI: Bus=0003 Vendor=062a Product=4101 Version=0110N: Name="MOSART Semi. 2.4G Keyboard Mouse"P: Phys=usb-hiusb-ohci-1/input0S: Sysfs=/devices/platform/hiusb-ohci.0/usb2/2-1/2-1:1.0/input/input3U: Uniq=H: Handlers=kbd event0B: PROP=0B: EV=120013B: KEY=10000 7 ff9f207a c14057ff febeffdf ffefffff ffffffff fffffffeB: MSC=10B: LED=7I: Bus=0003 Vendor=062a Product=4101 Version=0110N: Name="MOSART Semi. 2.4G Keyboard Mouse"P: Phys=usb-hiusb-ohci-1/input1S: Sysfs=/devices/platform/hiusb-ohci.0/usb2/2-1/2-1:1.1/input/input4U: Uniq=H: Handlers=kbd mouse0 event1B: PROP=0B: EV=1fB: KEY=4837fff 72ff32d bf544446 0 0 1f0001 20f90 8b17c000 677bfa d941dfed 9ed680 4400 0 10000002B: REL=1c3B: ABS=1f01 0B: MSC=10
# ./mice_testkey = 0x01 x = 0x3d, y = 0xff, z = 0x02key = 0x00 x = 0x3d, y = 0xf8, z = 0x00key = 0x05 x = 0x3e, y = 0x61, z = 0x02key = 0x00 x = 0x3e, y = 0x59, z = 0x00key = 0x07 x = 0x3e, y = 0x2f, z = 0x02key = 0x00 x = 0x3e, y = 0x28, z = 0x00key = 0x04 x = 0x3e, y = 0xf1, z = 0x02key = 0x07 x = 0x3e, y = 0xed, z = 0x02key = 0x00 x = 0x3e, y = 0xe7, z = 0x00key = 0x05 x = 0x3e, y = 0xb2, z = 0x02key = 0x02 x = 0x3e, y = 0xaf, z = 0x02key = 0x00 x = 0x3e, y = 0xa9, z = 0x00key = 0x06 x = 0x3e, y = 0x70, z = 0x02key = 0x02 x = 0x3e, y = 0x6c, z = 0x02
4、答疑解惑
event0,event1和mice设备是什么关系？听我们老板说以前是用mice,后来使用event0这是什么原因？还有内核中鼠标驱动是在哪里入手？
MISC是一类设备，U盘属于USB类，SD卡属于SD卡类，他们都有一类总线那么对于LED, 按键这些东西没有一类，所以都可以把它们放到MISC里去。
event是事件设备，他可以包括鼠标，键盘，按键，操作杆等输入设备。这两个都是event事件的设备。无线鼠标是USB设备，USB设备有很多类。要搞清楚无线鼠标，就要知道USB设备驱动，设备是怎么发现，注册的；然后学习input设备驱动模型
有木有相关文档博文推荐呢？
http://mcuos.com/thread-8384-1-2.html
记忆的屏障，曾经心动的声音已渐渐远去。
