Configure kernel make menuconfig, select device driver
Device Drivers---->USB Support--->usb Serial Converter support----> (1) USB Generic Serial driver. (2) USB FTDI single Port Serial Driver. (FTDI chip driver) (3) USB prolific 2303 single Port Serial Driver (PL2303 chip driver) device Drivers---->USB Support---><*>support For Host-side usb and () nbsp ---><*> USB Mass Storage Supp ORT (this option is related to SCSI options and may not be visible when not selected) device Drivers---->SCSI Device support ---> (1) <*> SCSI Device Support &NBSP;//USB disk &NB Sp , &NB Sp (2) <*> SCSI disk support &NBSP;//SCSI hard drive and make after U disk is saved. &nbSP; the USB driver needs to be loaded after the system starts and can be viewed using lsmod. After inserting a USB-to-serial device, you can see the/dev/ttyusb0 device plugged into the U-disk under Dev, and the/DEV/SDA and/dev/sda1 are displayed under Dev. After reviewing the data, we find that SDA represents the U-disk device, and sda1 represents the partition of U disk device. Mount: Mount/dev/sda1/mnt Uninstall: umount /mnt Reference: 52450611
Linux kernel supports u-disk and U-turn strings