命令行模块调试
调试按键、Touch、鼠标
getevent
# getevent监控当前的事件,鼠标事件,按键事件,拖动滑动等
# 具体的type,code,value的定义可以在源码/frameworks/base/core/java/android/view/KeyEvent.java中找到
#
$ getevent -h
Usage: getevent [-t] [-n] [-s switchmask] [-S] [-v [mask]] [-p] [-q] [-c count] [-r] [device]
-t: show time stamps
-n: don't print newlines
-s: print switch states for given bits
-S: print all switch states
-v: verbosity mask (errs=1, dev=2, name=4, info=8, vers=16, pos. events=32)
-p: show possible events (errs, dev, name, pos. events)
-q: quiet (clear verbosity mask)
-c: print given number of events then exit
-r: print rate events are received
# 显示事件相关的设备名称和状态
#
$ getevent -il
add device 1: /dev/input/event2
bus: 0018
vendor 0eaf
product 1020
version 0000
name: "mg-capacitive"
location: "I2C"
id: ""
version: 1.0.1
events:
KEY (0001): KEY_HOME KEY_MENU KEY_BACK BTN_TOUCH
ABS (0003): ABS_MT_SLOT : value 0, min 0, max 1, fuzz 0, flat 0, resolution 0
ABS_MT_POSITION_X : value 0, min 0, max 895, fuzz 0, flat 0, resolution 0
ABS_MT_POSITION_Y : value 0, min 0, max 1587, fuzz 0, flat 0, resolution 0
ABS_MT_TRACKING_ID : value 0, min 0, max 65535, fuzz 0, flat 0, resolution 0
input props:
INPUT_PROP_DIRECT
# 显示Touch事件
#
$ getevent -lr /dev/input/event2
EV_ABS ABS_MT_TRACKING_ID 00000043
EV_ABS ABS_MT_POSITION_X 000002d0
EV_ABS ABS_MT_POSITION_Y 0000039b
EV_KEY BTN_TOUCH DOWN
EV_SYN SYN_REPORT 00000000
EV_ABS ABS_MT_POSITION_X 000002de
EV_ABS ABS_MT_POSITION_Y 000003a7
EV_SYN SYN_REPORT 00000000 rate 7
sendevent
$ adb shell sendevent [device] [type] [code] [value]
# 发送时间,格式和上面的一样,需要注意的是在getevent中code显示的是十六进制,而sendevent中需要用十进制,例如
# 这个命令就是发送数字4的keydown消息,所以在屏幕上就会一直打印出很多个4(因为没有发送keyup)
$ adb shell sendevent /dev/input/event0 1 5 1 代表按下数字4
$ adb shell sendevent /dev/input/event0 1 229 1 代表按下按下menu键
$ adb shell sendevent /dev/input/event0 1 229 0 代表按下松开menu键
# 发送鼠标事件(Touch)：
# 情况1：在某坐标点上touch
# 如在屏幕的x坐标为40，y坐标为210的点上touch一下，命令如下
$ adb shell sendevent /dev/input/event0 3 0 40
$ adb shell sendevent /dev/input/event0 3 1 210
$ adb shell sendevent /dev/input/event0 1 330 1 //touch
$ adb shell sendevent /dev/input/event0 0 0 0 //it must have
$ adb shell sendevent /dev/input/event0 1 330 0 //untouch
$ adb shell sendevent /dev/input/event0 0 0 0 //it must have
# 情况2：模拟滑动轨迹（可下载并采用aPaint软件进行试验）
# 如下例是在aPaint软件上画出一条开始于（100,200），止于（108,200）的水平直线
$ adb shell sendevent /dev/input/event0 3 0 100 //start from point (100,200)
$ adb shell sendevent /dev/input/event0 3 1 200
$ adb shell sendevent /dev/input/event0 1 330 1 //touch
$ adb shell sendevent /dev/input/event0 0 0 0
$ adb shell sendevent /dev/input/event0 3 0 101 //step to point (101,200)
$ adb shell sendevent /dev/input/event0 0 0 0
…………………… //must list each step, here just skip
$ adb shell sendevent /dev/input/event0 3 0 108 //end point(108,200)
$ adb shell sendevent /dev/input/event0 0 0 0
$ adb shell sendevent /dev/input/event0 1 330 0 //untouch
$ adb shell sendevent /dev/input/event0 0 0 0
调试WIFI网络
1、启动wpa_supplicant
# 以daemon方式启动wpa_supplicat：
# 其中的wlan0为系统内的无线网卡的设备名。配置文件是/etc/wpa_supplicant.conf，
# 其中不包含要连接的无线网络的配置信息。最简单的配置文件只包含一句配置语句即可：
# ctrl_interface=/var/run/wpa_supplicant
$ wpa_supplicant -B -i wlan0 -D wext -c /etc/wpa_supplicant.conf
2、启动wpa_cli
# 如果系统内只有一个无线网卡，则-i wlan0参数可省略。程序启动后，
# 进入交户操作状态，可接受用户的命令输入。下面的命令都是在这个
# 交互操作模式下输入的。
$ wpa_cli -i wlan0
3、增加网络，并设置网络参数
# 可以先用status命令查讯网络连接状态，应该返回
$ status
wpa_state=DISCONNECTED
# 显示网络接口
$ interface
Available interfaces:
eth0
# 扫描网络
$ scan
# 查看扫描结果
$ scan_results
bssid / frequency / signal level / flags / ssid
3c:e5:a6:8a:fe:50 2462 -50 [WEP] ChinaNet-soft
d8:5d:4c:57:bd:4a 2427 -62 [WPS] otatest
# 添加扫描到的网络，该命令会返回新增加的网络的ID，依次递增
$ add_network
# 查看网络节点的列表
$ list_network
network id / ssid / bssid / flags
0 ChinaNet-soft any [CURRENT]
1 any [DISABLED]
# wyk是无线网络名称，需要加引号
# password代表网络的密码，需要加引号
$ set_network 1 ssid "otatest"
$ set_network 1 psk "password"
4、启用网络
# 命令执行后，wpa_cli会输出连接的过程信息。如果一切正确，则最后后输出：
# <2>CTRL-EVENT-CONNECTED - Connection to xx:xx:xx:xx:xx:xx completed (reauth) [id=0 id_str=]
$ enable_network 0
5、获取IP地址
# 退出wpa_cli
$ quit
# 命令获取IP地址。
dhclient wlan0
调试Alsa音频驱动
# 混音调试
$ alsa_amixer -h
Usage: amixer <options> [command]
Available options:
-h,--help this help
-c,--card N select the card
-D,--device N select the device, default 'default'
-d,--debug debug mode
-n,--nocheck do not perform range checking
-v,--version print version of this program
-q,--quiet be quiet
-i,--inactive show also inactive controls
-a,--abstract L select abstraction level (none or basic)
-s,--stdin Read and execute commands from stdin sequentially
Available commands:
scontrols show all mixer simple controls
scontents show contents of all mixer simple controls (default command)
sset sID P set contents for one mixer simple control
sget sID get contents for one mixer simple control
controls show all controls for given card
contents show contents of all controls for given card
cset cID P set control contents for one control
cget cID get control contents for one control
# 控制接口
$ alsa_ctl -h
Usage: alsactl <options> command
Available global options:
-h,--help this help
-d,--debug debug mode
-v,--version print version of this program
Available state options:
-f,--file # configuration file (default /etc/asound.state)
-F,--force try to restore the matching controls as much as possible
(default mode)
-g,--ignore ignore 'No soundcards found' error
-P,--pedantic do not restore mismatching controls (old default)
-I,--no-init-fallback
don't initialize even if restore fails
-r,--runstate # save restore and init state to this file (only errors)
default settings is 'no file set'
-R,--remove remove runstate file at first, otherwise append errors
Available init options:
-E,--env #=# set environment variable for init phase (NAME=VALUE)
-i,--initfile # main configuation file for init phase (default /system/usr/share/alsa/init/00main)
Available commands:
store <card #> save current driver setup for one or each soundcards
to configuration file
restore <card #> load current driver setup for one or each soundcards
from configuration file
init <card #> initialize driver to a default state
names <card #> dump information about all the known present (sub-)devices
into configuration file (DEPRECATED)
调试蓝牙设备
1. 打开蓝牙电源
$ echo 1 > /sys/class/rfkill/rfkill0/state
2. 加载厂商的驱动模块
$ brcm_patchram_plus --patchram /system/etc/firmware/BCM4329_BT.hcd /dev/ s3c2410_serial0
3. 使用hciattach进行设备绑定
$ hciattach -n /dev/s3c2410_serial0 any &
4. 启用蓝牙接口
$ hciconfig hci0 up
5. 扫描蓝牙设备
$ hcitool scan
调试Vold磁盘挂载程序
$ adb shell vdc
Usage: vdc <monitor>|<cmd> [arg1] [arg2...]
# 监控Vold的log信息
$ vdc monitor
[Connected to Vold]
632 Volume removable_sdcard /mnt/sdcard/removable_sdcard bad removal (179:25)
605 Volume removable_sdcard /mnt/sdcard/removable_sdcard state changed from 4 (Mounted) to 5 (Unmounting)
# 模拟MountService向Vold守护进程发送命令
$ adb shell vdc volume mount /mnt/sdcard
调试Netd守护进程
$ adb shell ndc
Usage: ndc <monitor>|<cmd> [arg1] [arg2...]