int devices_init (void)

 {

 #ifndef CONFIG_ARM     /* already relocated for current ARM implementation */

     ulong relocation_offset = gd->reloc_off;

     int i;

     /* relocate device name pointers */

     for (i = ; i < (sizeof (stdio_names) / sizeof (char *)); ++i) {

         stdio_names[i] = (char *) (((ulong) stdio_names[i]) +

                         relocation_offset);

     }//重定位设备输入输出设备名字指针

 #endif

     /* Initialize the list */

     devlist = ListCreate (sizeof (device_t));//初始化列表

     if (devlist == NULL) {

         eputs ("Cannot initialize the list of devices!\n");

         return -;

     }

 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)

     i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);

 #endif

 #ifdef CONFIG_LCD

     drv_lcd_init ();

 #endif

 #if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)

     drv_video_init ();

 #endif

 #ifdef CONFIG_KEYBOARD

     drv_keyboard_init ();

 #endif

 #ifdef CONFIG_LOGBUFFER

     drv_logbuff_init ();

 #endif

     drv_system_init ();

 #ifdef CONFIG_SERIAL_MULTI

     serial_devices_init ();

 #endif

 #ifdef CONFIG_USB_TTY

     drv_usbtty_init ();

 #endif

 #ifdef CONFIG_NETCONSOLE

     drv_nc_init ();

 #endif

     return ();

 }