Difference between revisions of "RockpiE/dev/usb-mass-storage"
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=== Description === | === Description === | ||
| − | + | This guide describes how to setup USB Mass Storage OTG on ROCK Pi E. | |
| − | This guide | + | |
=== Requirement === | === Requirement === | ||
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$ sudo apt-get install -y linux-4.4-rock-pi-e-latest | $ sudo apt-get install -y linux-4.4-rock-pi-e-latest | ||
| − | Step 3 | + | Step 3: Reboot the device. |
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$ sudo reboot | $ sudo reboot | ||
| − | Step | + | Step 4: Create a file to be a shared space and make it FAT32 type. |
$ sudo dd if=/dev/zero of=/home/rock/share bs=1M count=512 status=progress | $ sudo dd if=/dev/zero of=/home/rock/share bs=1M count=512 status=progress | ||
$ sudo apt-get install dosfstools | $ sudo apt-get install dosfstools | ||
| − | $ sudo mkfs.fat / | + | $ sudo mkfs.fat /home/rock/share -F 32 -I |
| − | Step | + | Step 5: Enable usb mass storage with the file |
$ sudo modprobe g_mass_storage file=/home/rock/share stall=0 removable=1 | $ sudo modprobe g_mass_storage file=/home/rock/share stall=0 removable=1 | ||
$ sudo mount /home/rock/share /mnt/ | $ sudo mount /home/rock/share /mnt/ | ||
$ sudo touch /mnt/a.c | $ sudo touch /mnt/a.c | ||
| − | $ ls | + | $ ls /mnt |
a.c | a.c | ||
| Line 80: | Line 71: | ||
On Rock Pi E: | On Rock Pi E: | ||
| + | |||
Create a new file to it. | Create a new file to it. | ||
$ sudo touch /mnt/b.c | $ sudo touch /mnt/b.c | ||
| − | $ ls | + | $ ls /mnt |
a.c b.c | a.c b.c | ||
| Line 88: | Line 80: | ||
$ ls /mnt | $ ls /mnt | ||
a.c | a.c | ||
| − | It just have one file a.c, | + | It just have one file a.c, now you should remount to update it. |
$ sudo umount /mnt | $ sudo umount /mnt | ||
$ sudo mount /dev/sdd /mnt | $ sudo mount /dev/sdd /mnt | ||
| Line 96: | Line 88: | ||
=== Troubleshooting === | === Troubleshooting === | ||
| − | * If you have issue with USB Mass Storage OTG, start a new post on the forum. https://forum.radxa.com/c/ | + | * If you have issue with USB Mass Storage OTG, start a new post on the forum. https://forum.radxa.com/c/rockpie |
Latest revision as of 06:15, 24 September 2021
ROCK Pi E > Development > USB Mass Storage
Contents
Description
This guide describes how to setup USB Mass Storage OTG on ROCK Pi E.
Requirement
- ROCK Pi E mainboard
- eMMC module
- Power adapter
- USB Male A to Dupont cable.
- One port is Male A type and the other includes three Dupont lines.
- Hardware connection
| ROCK Pi E 40-pin Header | USB Interface | USB Male A to Dupont Cable |
|---|---|---|
| PIN#18 | Data+ | Green wire |
| PIN#16 | Data- | White wire |
| PIN#14 | GND | Black wire |
Support
Support hardware platform:
- ROCK Pi E V1.1 or later
You'd better follow the installation steps.
Operations on ROCK Pi E
For example, my testing borad is Rock pi E V1.2 on Debian buster, Linux rockpie 4.4.194-19-rockchip-g287ff75afc47
You can use ssh or serial console to access ROCK Pi E.
Step 1: Add the following line to file /boot/uEnv.txt.
overlays=rk3328-uart2 rk3328-usb-otg
Step 2: Update rockchip-overlay, kernel, rockchip-adbd kernel packages.
$ sudo apt-get install -y rockchip-overlay $ sudo apt-get install -y linux-4.4-rock-pi-e-latest
Step 3: Reboot the device.
$ sudo reboot
Step 4: Create a file to be a shared space and make it FAT32 type.
$ sudo dd if=/dev/zero of=/home/rock/share bs=1M count=512 status=progress $ sudo apt-get install dosfstools $ sudo mkfs.fat /home/rock/share -F 32 -I
Step 5: Enable usb mass storage with the file
$ sudo modprobe g_mass_storage file=/home/rock/share stall=0 removable=1 $ sudo mount /home/rock/share /mnt/ $ sudo touch /mnt/a.c $ ls /mnt a.c
Operations on PC
Now, you can see the new partition /dev/sdx is mounted.
$ lsblk ...... sdd 8:48 1 512M 0 disk /mnt $ ls /mnt a.c
Attention
When add files to this shared space, the other side needs to be unmounted and remounted the shared space. For example:
On Rock Pi E:
Create a new file to it.
$ sudo touch /mnt/b.c $ ls /mnt a.c b.c
On PC:
$ ls /mnt a.c
It just have one file a.c, now you should remount to update it.
$ sudo umount /mnt $ sudo mount /dev/sdd /mnt $ ls /mnt a.c b.c
Troubleshooting
- If you have issue with USB Mass Storage OTG, start a new post on the forum. https://forum.radxa.com/c/rockpie