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Here’s a related to I2C HID (HID over I²C), which is commonly used for touchpads, touchscreens, and other input devices on laptops and tablets. Feature: Automatic I2C HID Device Reset & Re-initialization on Error Problem it solves: Sometimes an I2C HID device (like a laptop touchpad) stops responding after sleep/resume or driver crash — cursor freezes, no touch input. The system doesn’t automatically recover without a reboot.
Automatically trigger reset when device disappears from /dev/input/ but is still present on I²C bus. Would you like this as a standalone script , kernel module patch idea , or Windows/Linux utility spec ?
# Manually trigger reset (sysfs path example) echo 1 > /sys/bus/i2c/devices/i2c-HID-<device>/reset # Or power cycle echo 0 > /sys/bus/i2c/devices/i2c-HID-<device>/power/control echo 1 > /sys/bus/i2c/devices/i2c-HID-<device>/power/control No reboot needed → touchpad/touchscreen works again instantly.
Here’s a related to I2C HID (HID over I²C), which is commonly used for touchpads, touchscreens, and other input devices on laptops and tablets. Feature: Automatic I2C HID Device Reset & Re-initialization on Error Problem it solves: Sometimes an I2C HID device (like a laptop touchpad) stops responding after sleep/resume or driver crash — cursor freezes, no touch input. The system doesn’t automatically recover without a reboot.
Automatically trigger reset when device disappears from /dev/input/ but is still present on I²C bus. Would you like this as a standalone script , kernel module patch idea , or Windows/Linux utility spec ?
# Manually trigger reset (sysfs path example) echo 1 > /sys/bus/i2c/devices/i2c-HID-<device>/reset # Or power cycle echo 0 > /sys/bus/i2c/devices/i2c-HID-<device>/power/control echo 1 > /sys/bus/i2c/devices/i2c-HID-<device>/power/control No reboot needed → touchpad/touchscreen works again instantly.
