Archived
53 lines
1.5 KiB
Bash
53 lines
1.5 KiB
Bash
#!/bin/bash
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# Re-probe the IPU7 camera sensor after suspend/hibernate resume.
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#
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# The OV08X40 sensor connects through a USB-to-I2C bridge (usbio-bridge).
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# After resume the ipu_bridge software fwnode graph is gone, leaving the
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# sensor driver unable to bind. Removing and rescanning the IPU PCI device
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# triggers a fresh probe that recreates the fwnode graph.
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IPU_PCI="0000:00:05.0"
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case "$1" in
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post)
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(
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# Wait for the USB-I2C bridge to re-enumerate
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for i in $(seq 1 15); do
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if grep -q "OVTI08F4" /sys/bus/i2c/devices/*/name 2>/dev/null; then
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break
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fi
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sleep 1
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done
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sleep 1
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# Unload sensor so the IPU device can be cleanly removed
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modprobe -r ov08x40 2>/dev/null || true
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# Remove and rescan the IPU PCI device to trigger fresh ipu_bridge_init
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echo 1 > "/sys/bus/pci/devices/$IPU_PCI/remove" 2>/dev/null || true
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sleep 1
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echo 1 > /sys/bus/pci/rescan 2>/dev/null || true
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sleep 3
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# Reload sensor driver
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modprobe intel_cvs 2>/dev/null || true
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sleep 2
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modprobe ov08x40 2>/dev/null || true
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# Restart the camera feed service
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for uid_dir in /run/user/*; do
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uid=$(basename "$uid_dir")
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if [[ -S $uid_dir/bus ]]; then
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sudo -u "#$uid" env \
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XDG_RUNTIME_DIR="$uid_dir" \
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DBUS_SESSION_BUS_ADDRESS="unix:path=$uid_dir/bus" \
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systemctl --user restart camera-feed-watch.service 2>/dev/null || true
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fi
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done
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) &
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disown
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;;
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esac
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exit 0
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