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Tag: udev

Creating a new directory in /dev using udev rule

This is the code snippet responsible for creating the device: My udev rule is the following: From my understanding, this rule should match against the device name given by the kernel module (synchmess) and create the /dev subdirectory “synch”. However, the synchmess device shows under /dev with th…

Diolan DLN-2 SPI controller on x86_64 platform

I am attempting to utilize the DLN-2 in an x86_64 Linux environment (kernel version 4.18) to provide SPI and I2C bus controllers to the userspace, in a similar manner you would using an ARM platform with DTS/DTB file modifications. I am having trouble identifying the proper method to attach a SPI slave device…

Blocking USB HID in Linux

I’m programming a kioks device and i want to block all usb devices expect 2 kind of usb.One is my touch screen hid usb and the other one is usb storage devices.Actually i tried write rules under udev.I tried this code : But this one is blocking all usb devices.So i tried to add another rule to unblock s…

Copy file to USB automatically on mount Raspberry Pi

I’m currently doing a project which requires a file to be automatically copied to USB-stick on mount. Based on my research in internet, I believe it is doable using udev rule. So, when an USB is inserted into my RPi2, the udev rule will then execute a python script which allows file to be copied to the …