移植linux内核到S3C2410开发板的问题...

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