Contents
How does a USB mass storage gadget work?
The main idea is that the MSG presents a file in the local file system as a storage device to the USB host. On the target side, the content of the disk is stored in a file. The backing file is a “Unix file” that is given to the Mass Storage Gadget as a parameter, which can be a normal file or a block device such as a disk partition.
How does Linux mass storage Gadget ( MSG ) work?
We will use the Linux Mass Storage Gadget (MSG) to implement what we need. The main idea is that the MSG presents a file in the local file system as a storage device to the USB host. On the target side, the content of the disk is stored in a file.
What is the emcraft mass storage Gadget used for?
The hardware platform for this application note is Emcraft STM32F7 system-on-module (SOM) plugged into the SOM-BSB-EXT baseboard. We will use the Linux Mass Storage Gadget (MSG) to implement what we need. The main idea is that the MSG presents a file in the local file system as a storage device to the USB host.
Can a USB Gadget be used as a storage device?
Assuming the STM32F7 is connected to a host as a USB gadget, the above commands will make it immediately visible as a USB storage device to the host. Or, if the STM32F7 is not connected to a host at the time the above command is run, simply connect it to a host using an appropriate USB cable.
How do you open a.img file on a Mac?
This wikiHow teaches you how to open a disk image file (.img) on Windows or macOS. An .img file is exact image of a file system—you can either mount it as a drive or open it in an app like WinZip. Press ⊞ Win + E. This opens the Windows File Explorer. Open the folder that contains the .img file. Double-click the .img file.
What can a USB Gadget do for Linux?
A USB Linux Gadget is a device which has a UDC (USB Device Controller) and can be connected to a USB Host to extend it with additional functions like a serial port or a mass storage capability.
How to use the mass storage gadget in RidgeRun?
The SD card used for the mass storage space is the same where the boot and rootfs partitions are. Also shows how to use the mass storage gadget. 1. Enable the following modules of the kernel: