配置内核支持U盘

内核支持U盘 -- zImage for sbc-2410x

# cd linux-2.6.19
# vi arch/arm/mach-s3c2410/mach-smdk2410.c
--------------------------------------------------
(1) 添加头文件
//zxl for usb start
#include 
#include 
#include 
#include 
//zxl for usb end


(2) 以下内容加在static void __init smdk2410_map_io(void)前面
/***************** zxl add start *****************/
static struct s3c2410_hcd_info usb_sbc2410_info = {
    .port[0] = {
        .flags = S3C_HCDFLG_USED
    }
};

int usb_sbc2410_init(void)
{
    unsigned long upllvalue = (0x78<<12)|(0x02<<4)|(0x03);
    printk("USB Control, (c) 2006 sbc2410\n");
    s3c_device_usb.dev.platform_data = &usb_sbc2410_info;
    while(upllvalue!=__raw_readl(S3C2410_UPLLCON)) {
        __raw_writel(upllvalue,S3C2410_UPLLCON);
        mdelay(1);
    }
    return 0;
}
/***************** zxl add end *****************/


(3) 在MACHINE_START与MACHINE_END 之间加上.init_machine= &usb_sbc2410_init,结果变成了
MACHINE_START(SMDK2410, "SMDK2410") /* @TODO: request a new identifier and switch
                * to SMDK2410 */
    /* Maintainer: Jonas Dietsche */
    .phys_ram = S3C2410_SDRAM_PA,
    .phys_io = S3C2410_PA_UART,
    .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
    .boot_params = S3C2410_SDRAM_PA + 0x100,
    .map_io = smdk2410_map_io,
    .init_irq = smdk2410_init_irq,
    .timer = &s3c24xx_timer,
    //zxl add
    .init_machine= &usb_sbc2410_init,
MACHINE_END

(4) 在smdk2410_map_io()函数里面添加usb_sbc2410_init()函数调用:
static void __init smdk2410_map_io(void)
{
    s3c24xx_init_io(smdk2410_iodesc, ARRAY_SIZE(smdk2410_iodesc));
    s3c24xx_init_clocks(0);
    s3c24xx_init_uarts(smdk2410_uartcfgs, ARRAY_SIZE(smdk2410_uartcfgs));
    s3c24xx_set_board(&smdk2410_board);
    //zxl add
    usb_sbc2410_init();
}


内核配置(For USB)
--------------------------------------------------
让内核支持热插拔
General setup --->
[*] Configure standard kernel features (for small systems) ---> 
    [*]   Support for hot-pluggable devices (NEW) 

Device Drivers --->
    Generic Driver Options --->
        <*> Userspace firmware loading support //(1)
    Block devices --->
        <*> Low Performance USB Block driver
    SCSI device support --->
        <*> SCSI device support 
        <*> SCSI disk support
        <*> SCSI generic support
    USB support --->
        <*> Support for Host-side USB
        [*]   USB device filesystem
        <*> OHCI HCD support
        --- NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
        --- may also be needed; see USB_STORAGE Help for more information        
        <*> USB Mass Storage support
        [*] USB Monitor

File systems --->
    DOS/FAT/NT Filesystems --->
        <*> MSDOS fs support 
        <*> VFAT (Windows-95) fs support 
        (936) Default codepage for FAT 
        (cp936) Default iocharset for FAT 
        < > NTFS file system support
    Partition Types --->
        [*]   PC BIOS (MSDOS partition tables) support
    Native Language Support --->
        <*> Simplified Chinese charset (CP936, GB2312)
        <*> NLS UTF8


# make zImage
注: 系统正真支持U盘，busybox中还需要有udev应用程序(用户工具)


将zImage下载到开发板上，然后挂载U盘
# mount /dev/sda1 /mnt
=========================================================================

转载地址：http://blog.chinaunix.net/u3/104564/showart_2092008.html

配置USB for mini2440 & Linux2.6.30.4

U盘与鼠标的配置:
配置:
# make menuconfig
选上以下：

Device Drivers --->          SCSI device support --->              <*> SCSI device support              [*] legacy /proc/scsi/ support              <*> SCSI disk support         [*] HID Devices --->              <*> USB Human Interface Device (full HID) support              [*] /dev/hiddev raw HID device support         [*] USB support --->              <*> Support for Host-side USB              [*] USB device filesystem              [*] USB device class-devices (DEPRECATED)              <*> OHCI HCD support              <*> USB Mass Storage support

编译：
# make zImage
U盘和USB鼠标均可以使用！


摄象头的配置:
配置:
# make menuconfig
选上以下：

Device Drivers --->          Multimedia devices --->                    <*> Video For Linux                    [*] Enable Video For Linux API 1 (DEPRECATED)                    [*] Video capture adapters --->                        [*] Autoselect pertinent encoders/decoders and other helper chip                        [*] V4L USB devices --->                               <*> USB Video Class (UVC)                               [*] UVC input events device support                               <*> GSPCA based webcams --->

          如果不确定你的USB摄像头使用何种芯片，全部选上即可！
编译：
# make zImage
友善之臂公司提供的基于Qt的USB摄像头测试程序可以使用！