bash 如何在 linux 中永久禁用特定的 USB 端口？
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How to disable a specific usb port permanently in linux?
提问by gabriel
Is it possible to permanently disable a usbport in linux?
是否可以永久禁用 中的usb端口linux？
I have already figured out how to disable it:
我已经想出了如何禁用它：
echo -n "0000:00:12.0" > /sys/bus/pci/drivers/ohci_hcd/unbind
BUT after restart it is enabled.
但是重启后它被启用。
I have placed this script :
我已经放置了这个脚本：
#!/bin/sh
case "" in
resume|thaw)
echo -n "0000:00:12.0" > /sys/bus/pci/drivers/ohci_hcd/unbind
;;
esac
in /etc/pm/sleep.d/0_disable_usb2
在 /etc/pm/sleep.d/0_disable_usb2
But again without success. I also thought that i could disable it through biosbut as i could see i can disable the whole pci.
但又没有成功。我还认为我可以禁用它，bios但正如我所见，我可以禁用整个pci.
Is there any way of doing this?
有没有办法做到这一点？
.. My Operating system is Debian 7.7 64bit. The reason i want to do this is I am trying to configure my system for realtimecapabilities and my usb soundcardsharing the same IRQwith this port.
.. 我的操作系统是Debian 7.7 64bit. 我想这样做的原因是我正在尝试配置我的系统的realtime功能，并与此端口usb soundcard共享相同的功能IRQ。
采纳答案by muradin
First of all you should find your USB number of your device, Simply by using lsusb.
首先，您应该找到设备的 USB 编号，只需使用lsusb.
And in Linux everything is a file, So you can manage all of your hardware using the files.
在 Linux 中，一切都是一个文件，因此您可以使用这些文件管理所有硬件。
As it describes Hereif your kernel is > 2.6.38 you should use this keywords:
正如它在此处描述的那样，如果您的内核 > 2.6.38，您应该使用以下关键字：
echo "0" > "/sys/bus/usb/devices/usb2/power/autosuspend_delay_ms"
Then:
echo "0" > "/sys/bus/usb/devices/usb2/power/autosuspend_delay_ms"
然后：
echo "auto" > "/sys/bus/usb/devices/usb1/power/control"
echo "auto" > "/sys/bus/usb/devices/usb1/power/control"
回答by Mansur Ali
For me usb mounting is handle by a service udisk2.service if you would like to stop usb mounting then stop below service
对我来说，usb 安装由服务 udisk2.service 处理，如果您想停止 usb 安装，请停止以下服务
root@mahasan-Inspiron-5537:~# systemctl start udisks2.service
root@mahasan-Inspiron-5537:~# systemctl disable udisks2.service
