第一次编译出的问题:
[root@/]#usb 1-1: new full speed USB device using s3c2410-ohci and address 4
usb 1-1: device descriptor read/64, error -62
usb 1-1: device descriptor read/64, error -62
usb 1-1: new full speed USB device using s3c2410-ohci and address 5
usb 1-1: device descriptor read/64, error -62
usb 1-1: configuration #1 chosen from 1 choice
解决办法:
去掉了 Device Drivers --》
<*> Real Time Clock 前的*
第二次编译出现问题:
插入u盘时的显示:
[root@/]#usb 1-1: new full speed USB device using s3c2410-ohci and address 3
usb 1-1: configuration #1 chosen from 1 choice
scsi1 : SCSI emulation for USB Mass Storage devices
scsi 1:0:0:0: Direct-Access Kingston DataTraveler2.0 1.00 PQ: 0 ANSI: 2
sd 1:0:0:0: [sda] 3903359 512-byte hardware sectors (1999 MB)
sd 1:0:0:0: [sda] Write Protect is off
sd 1:0:0:0: [sda] Assuming drive cache: write through
sd 1:0:0:0: [sda] 3903359 512-byte hardware sectors (1999 MB)
sd 1:0:0:0: [sda] Write Protect is off
sd 1:0:0:0: [sda] Assuming drive cache: write through
sda: sda1
sd 1:0:0:0: [sda] Attached SCSI removable disk
看似没有问题,但是在挂载的时候出现问题:
Unable to load NLS charset cp437
FAT: codepage cp437 not found
解决办法:
在File systems--》
Native language support--》
<*> Codepage 437 (United States, Canada) 添加*
第三次编译出现问题:
插入后显示和第二次一样;
挂载的时候出现问题:
Unable to load NLS charset iso8859-1
FAT: IO charset iso8859-1 not found
解决办法:
在File systems--》
Native language support--》
<*> NLS ISO 8859-1 (Latin 1; Western European Languages) 添加*
第三次编译成功挂在u盘!!!
问题补充:
如果出现以下问题:
usb 1-1: device descriptor read/64, error -110
解决办法:
修改linux-2.6.24/drivers/usb/host/ohci-s3c2410.c
添加头文件:
#include
在s3c2410_start_hc里增加:
unsigned long upllvalue = (0x78<<12)|(0x02<<4)|(0x03);
while (upllvalue != __raw_readl(S3C2410_UPLLCON))
{
__raw_writel(upllvalue, S3C2410_UPLLCON);
mdelay(1);
}