The right way to increasing USBFS buffer size permanently

[BlazingForests]

Hi

I am try to increase USBFS buffer size today. I saw this https://github.com/OpenKinect/libfreenect2/wiki/Troubleshooting#multiple-kinects-try-increasing-usbfs-buffer-size

But it's not working.

After search, I found the right way is

$ sudo sh -c 'echo 128 > /sys/module/usbcore/parameters/usbfs_memory_mb'

But this command just affect until the next reboot. If you want modify it permanently. You can follow below steps.

• Open /etc/default/grub file,Find and replace

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

with this

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash usbcore.usbfs_memory_mb=128"

• Update grub

$ sudo update-grub

• Reboot and check

$ cat /sys/module/usbcore/parameters/usbfs_memory_mb

THX
DD

[xlz]

# is the root prompt.

I don't use grub.

Thanks for the notice.