permanently disabling usb / mmc ports under linux

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My BIOS does not have option to disable specific ports.



I want to disable permanently specific USB / MMC ports on my system ( x86_64, kernel 4.15+, debian-like). I started with USB ports.



  • Disabling : Port will be powered down just like unbind mechanism.

  • Permanent : Please someone help me to make this persistent via UDEV/KernelCMDLINE. I read almost all references on the net, but couldn't find an example to avoid kernel to create device nodes very early at initramfs !

I read: https://www.kernel.org/doc/html/v4.16/driver-api/usb/power-management.html
And with my current kernel ( 4.15+) except unbind mechanism, I couldn't find a way to poweroff specific port, while other ports still continue to have powered on.



And unfortunately, bind/unbind mechanism is not very friendly: Even without reboot, if you remove/re-insert the device, your settings for that port are get lost.



Is there a way to achive permanently disable specific port under linux ?






linux usb power-management







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  • A possible duplicate
    – RubberStamp
    18 mins ago














up vote
0
down vote

favorite












My BIOS does not have option to disable specific ports.



I want to disable permanently specific USB / MMC ports on my system ( x86_64, kernel 4.15+, debian-like). I started with USB ports.



  • Disabling : Port will be powered down just like unbind mechanism.

  • Permanent : Please someone help me to make this persistent via UDEV/KernelCMDLINE. I read almost all references on the net, but couldn't find an example to avoid kernel to create device nodes very early at initramfs !

I read: https://www.kernel.org/doc/html/v4.16/driver-api/usb/power-management.html
And with my current kernel ( 4.15+) except unbind mechanism, I couldn't find a way to poweroff specific port, while other ports still continue to have powered on.



And unfortunately, bind/unbind mechanism is not very friendly: Even without reboot, if you remove/re-insert the device, your settings for that port are get lost.



Is there a way to achive permanently disable specific port under linux ?






linux usb power-management







share|improve this question





















  • A possible duplicate
    – RubberStamp
    18 mins ago












up vote
0
down vote

favorite









up vote
0
down vote

favorite











My BIOS does not have option to disable specific ports.



I want to disable permanently specific USB / MMC ports on my system ( x86_64, kernel 4.15+, debian-like). I started with USB ports.



  • Disabling : Port will be powered down just like unbind mechanism.

  • Permanent : Please someone help me to make this persistent via UDEV/KernelCMDLINE. I read almost all references on the net, but couldn't find an example to avoid kernel to create device nodes very early at initramfs !

I read: https://www.kernel.org/doc/html/v4.16/driver-api/usb/power-management.html
And with my current kernel ( 4.15+) except unbind mechanism, I couldn't find a way to poweroff specific port, while other ports still continue to have powered on.



And unfortunately, bind/unbind mechanism is not very friendly: Even without reboot, if you remove/re-insert the device, your settings for that port are get lost.



Is there a way to achive permanently disable specific port under linux ?






linux usb power-management







share|improve this question













My BIOS does not have option to disable specific ports.



I want to disable permanently specific USB / MMC ports on my system ( x86_64, kernel 4.15+, debian-like). I started with USB ports.



  • Disabling : Port will be powered down just like unbind mechanism.

  • Permanent : Please someone help me to make this persistent via UDEV/KernelCMDLINE. I read almost all references on the net, but couldn't find an example to avoid kernel to create device nodes very early at initramfs !

I read: https://www.kernel.org/doc/html/v4.16/driver-api/usb/power-management.html
And with my current kernel ( 4.15+) except unbind mechanism, I couldn't find a way to poweroff specific port, while other ports still continue to have powered on.



And unfortunately, bind/unbind mechanism is not very friendly: Even without reboot, if you remove/re-insert the device, your settings for that port are get lost.



Is there a way to achive permanently disable specific port under linux ?






linux usb power-management




linux usb power-management






share|improve this question













share|improve this question











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asked 24 mins ago









Sertac TULLUK

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  • A possible duplicate
    – RubberStamp
    18 mins ago
















  • A possible duplicate
    – RubberStamp
    18 mins ago















A possible duplicate
– RubberStamp
18 mins ago




A possible duplicate
– RubberStamp
18 mins ago















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