USB_FS memory allocation

[afridali123]

I follwed the solution provided in the below topic.

change usbcore.usbfs_memory_mb [SOLVED]

Hello, I need to change the parameter usbcore.usbfs_memory_mb, that on the TX2 I usually change in the conf file: /boot/extlinux/extlinux.conf Now I’m trying to do the same with the Xavier (Jetpack 4.2), but there is not the same file. I also noticed that there is the folder of the GRUB bootloader, but Grub is not installed. I tried to append the line: APPEND ${cbootargs} usbcore.autosuspend=-1 usbcore.usbfs_memory_mb=256 root=/dev/mmcblk0p1 in the configuration file (on the host pc): /ho…

By re-flashing the AGX xavier with below command without changing any original jepack files

sudo ./flash.sh -k kernel -C “usbcore.usbfs_memory_mb=1000” -k kernel-dtb jetson-xavier mmcblk0p1

Reflashing done successsfully but when i turn on and check the usbfs_memory_mb,its still shows default 16MB.

[DaneLLL]

Hi,
Please re-flash the system( without -C usbcore.usbfs_memory_mb=1000 ) and only apply this:
change usbcore.usbfs_memory_mb [SOLVED] - #6 by sidneib

Ideally the setting in extlinux.conf shall be applied. Please add the line and reboot the system for a try.

[afridali123]

Hi,
I have tried the mentioned solution as well.But still it is showing default value.

[DaneLLL]

Hi,
Does it work if you modify the value directly?

# echo 256 > /sys/module/usbcore/parameters/usbfs_memory_mb

[afridali123]

Hi,

its working, but everytime i reboot or power cycle jetson , i need to set it manually, i m trying to flash permanently, please help in approach, thanks

[DaneLLL]

Hi,
A possible solution is to run a script at startup. Please refer to Jetson Nano FAQ

Q: How to autorun an app or commands at startup?

A bit strange that it doesn’t work by modifying extlinux.conf. This would need other users to share experience.