TX2440 移植USB驱动

嵌入式学习入门 http://blog.chinaunix.net/u3/117680/showart.php?id=2300212  

    ，  文章——>嵌入式学习入门    全面的讲述学习嵌入式linux中的每个步骤 

 

移植步骤

1. 配置内核对USB设备的支持。2.6.30.4内核中对USB设备的支持已经非常全面了，这里只需要配置他就可以了，配置完后重新编译内核烧到开发板上

SCSI device support --->
        < > RAID Transport Class
        <*> SCSI device support
        < > SCSI target support
        [*] legacy /proc/scsi/ support
        *** SCSI support type (disk, tape, CD-ROM) ***
        <*> SCSI disk support
        < > SCSI tape support
        < > SCSI OnStream SC-x0 tape support
        < > SCSI CDROM support
        <*> SCSI generic support
        < > SCSI media changer support
    [*] HID Devices --->
        --- HID Devices
        -*- Generic HID support
        [ ] HID debugging support
        [ ] /dev/hidraw raw HID device support
        *** USB Input Devices ***
        <*> USB Human Interface Device (full HID) support
        [ ] PID device support
        [*] /dev/hiddev raw HID device support
    [*] USB support --->
        {*} Support for Host-side USB
        [ ] USB verbose debug messages
        [ ] USB announce new devices
        *** Miscellaneous USB options ***
        [*] USB device filesystem
        [*] USB device class-devices (DEPRECATED)
        <*> OHCI HCD support
        <*> USB Mass Storage support

 插入U盘。当系统启动后插入U盘就会出现一些信息，可以看到sda就是U盘设备了，sda1是U盘的一个分区

3. 挂载U盘。执行mount命令将U盘挂载到/mnt/usb/目录下，但是没成功，出错啦

3. 错误分析处理。首先查看/dev/目录下并没有sda1节点所以出错，我们查看/proc/partitions/目录发现sda1的主设备号是8，次设备号是1，那么我们就创建这个设备的节点，b代表块设备，最后再执行mount命令，没有出错

4. U盘成功挂载。查看U盘中的内容

 

嵌入式学习入门 http://blog.chinaunix.net/u3/117680/showart.php?id=2300212