qq2440启动linux后插入u盘出现usb 1-1: device descriptor read/64, error -110,usb 1

上位机：ubuntu14.04 64bit

下位机:qq2440

交叉编译器:arm-linux-gcc 3.4.1

下位机使用的linux内核版本:kernel2.6.13

1.插入u盘时错误信息如下:

[root@FriendlyARM /home]# usb 1-1: new full speed USB device using s3c2410-ohci and address 6
usb 1-1: device descriptor read/64, error -110
usb 1-1: device descriptor read/64, error -110
usb 1-1: new full speed USB device using s3c2410-ohci and address 7
usb 1-1: device descriptor read/64, error -110
usb 1-1: device descriptor read/64, error -110
usb 1-1: new full speed USB device using s3c2410-ohci and address 8
usb 1-1: device not accepting address 8, error -110
usb 1-1: new full speed USB device using s3c2410-ohci and address 9
usb 1-1: device not accepting address 9, error -110

2.解决方案如下:

2.1修改drivers/usb/host/ohci-s3c2410.c文件，添加以下内容：

　　a.先添加头文件#include

　　b.在s3c2410_start_hc函数中添加以下内容：

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