问题：
内核配置时使用smdk2410的默认配置. U盘不能挂载!
插拔U盘提示信息为:
$ usb 1-1: USB disconnect, address 2
usb 1-1: new full speed USB device using s3c2410-ohci and address 3
usb 1-1: configuration #1 chosen from 1 choice
办法：
重新配置内核
配置USB设备支持
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
再次插上U盘提示信息为：
插上U盘后,显示:
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 USB Flash Disk 1.06 PQ: 0 ANSI: 0 CCS
sd 1:0:0:0: [sda] 129312 512-byte hardware sectors (66 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] 129312 512-byte hardware sectors (66 MB)
sd 1:0:0:0: [sda] Write Protect is off
sd 1:0:0:0: [sda] Assuming drive cache: write through
sda: sda1
sda: p1 exceeds device capacity
sd 1:0:0:0: [sda] Attached SCSI removable disk
U盘的设备名称为sda1，执行命令挂载：
#mount -t vfat sda1 /mnt
提示错误信息：
Unable to load NLS charset cp437
FAT: codepage cp437 not found
mount: mounting sda1 on /mnt failed: Invalid argument
原因是内核缺少cp437字符集。
重新配置内核，在filesystems-->native language support-> 中选择Codepage 437和其他的一些常用的字符集。
再次执行命令挂载：
#mount -t vfat sda1 /mnt
挂载成功，无任何错误信息输出！
问题：不支持蓝牙
办法：重新配置内核
相信多数人使用的都是2.6的内核了，在2.6的内核中要支持Bluez，只要你的内核版本不是太旧，无需打Patch，直接配置好就OK了，内核里面的代码相对比较稳定了。当然，Bluez对一些Bluetooth协议栈新特性的支持，还是需要更新kernel代码的。你应该确认你使用的 kernel版本是否以及包含了对应的支持。
内核的配置，基本上把 networking下 --- Bluetooth subsystem support 里的以下几项全部选上即可：
L2CAP protocol support
SCO links support
RFCOMM protocol support
RFCOMM TTY support
BNEP protocol support
HIDP protocol support
此外，在Bluetooth device drivers里选上你所需要支持的Bluetooth设备。根据自己使用的设备接口类型选择，如果你是通过usb接口使用蓝牙适配器，需要选择
HCI USB driver
