Linux kernel configuration support for USB disk (for mini2440)

Configuring USB

Because the USB flash drive uses SCSI commands, we first add SCSI support. In the Device Drivers menu, select SCSI device support, press Enter to enter the menu that appears, press the spacebar to select the option – SCSI device support, then enter and select SCSI disk support, return to the Device Drivers menu, select USB support, press Enter to enter the USB support menu, find and select "<*> USB Mass Storage support", in addition, most of the current USB flash drives and other mobile storage devices use FAT/FAT32 format, so we also need to add support for the FAT32 file system, select the following menu items in the kernel configuration main menu:

File systems —>

DOS/FAT/NT Filesystems —>

Enter the FAT32 file system configuration submenu and select: MSDOS fs support

In addition, in order to support Chinese and English encodings, select "-- Native language support —>" under the "File systems" menu and enter. Here, we need to select the following encodings to support:

<> Codepage 437 (United States, Canada)

<> NLS ISO 8859-1 (Latin 1; Western European Languages)

<> NLS UTF-8

Exit to save the above configuration.

Execute make zImage in the kernel source code root directory to burn the generated new kernel into the development board. Do not insert the USB flash drive yet (this is done to see the printed information when it is inserted). After the system starts, enter the command line console. At this time, you can see the USB flash drive information:

Manually mount the USB drive

1. Create the /mnt/udisk directory

#mkdir /mnt/udisk

2. Mount the USB drive to the /mnt/udisk directory

#mount /etc/sda4 /mnt/udisk

View the contents of the USB drive:

#cd /mnt/udisk

#ls