Android的专用驱动：Ashmem、binder、logger

 Ashmem:匿名共享内存驱动

Logger：轻量级的log驱动

Binder：基于OpenBinder驱动，为android平台提供IPC支持。

Android Power Management：定时器驱动，用于唤醒设备

 

Ashmem路径：

     kernel/include/linux/ashmem.h

          Kernel/mm/ashmem.c

提供的接口：system/core/include/cutils/ashmem.h

         System/core/libcutils/ashmem-dev.c

         System/core/libcutils/ashmem-host.c

  

Binder驱动提供IPC支持，android整个系统的运行依赖binder驱动。

          Kernel/include/linux/binder.h

          Kernel/drivers/misc/binder.c

 

         Frameworks/base/cmds/servicemanager/

         Frameworks/base/include/utils

         Frameworks/base/libs/utils

Logger驱动的代码：

          Kernel/include/linux/logger.h

          Kernek/drivers/misc/logger.c 

          Syste,m/core/logcat

 

Framebuffer驱动：

         Include/linux/fb.h

         Drivers/video/fbmem.c

 

Input驱动：

     include/linux/input.h    

         android/s1/kernel/include/linux（android）

         Drivers/input/input.c      

        /kernel/drivers/input

         Drivers/input/evdev.c 

 

Event输入设备驱动

V412摄像头视频驱动:

         Include/linux/videodev.h

          Include/linux/videodev2.h

          Include/media/v412-dev.h

          Drivers/media/video/v412-dev.c

 

OSS(open sound system)音频驱动：

          Include/linux/soundcard.h

          Include/linux/sound.h

          Sound/sound_core.c

 

ALSA(advanced linux sound architecture高级linux声音体系)音频驱动：

           Include/sound/asound.h

          Include/sound/core.h

           Sound/core/sound.c

 

MTD(memory technology device内存技术设备)驱动:

          Include/linux/mtd/mtd.h

           Drivers/mtd/mtdcore.c

           Drivers/mtd/mtdchar.c

           Drivers/mtd/mtdblock.c

 

蓝牙驱动:

           Include/net/bluetooth/hci_core.h

           Include/net/bluetooth/bluetooth.h

           Net/bluetooth/*

           Drivers/bluetooth/*

 

Wlan驱动:

           Include/net/wireless.h

           Net/wireless/*

           Drivers/net/wireless/*

 

I2C驱动：

     /kernel/drivers/i2c

 

触摸屏驱动：

         /kernel/drivers/input/touchscreen/*

 USB gadget 设备功能介绍
目前usb 主要实现的功能有：adb，mass_storage，mtp，serial，其中框架功能由如下两
个文件实现：
1．drivers/usb/gadget/android.c（包含对RNDIS 的支持）
2．drivers/usb/gadget/composite.c
各个具体的功能则由如下文件实现：
1．drivers/usb/gadget/f_adb.c
2．drivers/usb/gadget/f_mass_storage.c
3．drivers/usb/gadget/f_mtp.c