spdis
33 lines
1.0 KiB
Bash
33 lines
1.0 KiB
Bash
#!/bin/sh
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# VL53L0X 激光测距初始化脚本
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# GPIO 50=SCL, GPIO 51=SDA -> I2C2_SCL[1]/I2C2_SDA[1]
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echo "[VL53L0X] === 检查/初始化激光测距 ==="
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# 1. 检查设备节点是否已存在
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if [ -c /dev/stmvl53l0x_ranging ]; then
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echo "[VL53L0X] /dev/stmvl53l0x_ranging 已存在"
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else
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echo "[VL53L0X] /dev/stmvl53l0x_ranging 不存在，尝试加载驱动..."
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modprobe stmvl53l0x 2>/dev/null || modprobe vl53l0x 2>/dev/null
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if [ ! -c /dev/stmvl53l0x_ranging ]; then
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echo "[VL53L0X] 驱动未加载，需要检查内核配置或设备树"
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fi
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fi
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# 2. 设置 GPIO 50/51 为 I2C 功能（尝试通过 debugfs pinctrl）
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PINMUX=/sys/kernel/debug/pinctrl/zx296718-pinctrl
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if [ -d "$PINMUX" ]; then
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echo "[VL53L0X] pinctrl debugfs 可用: $PINMUX"
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ls "$PINMUX"/
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else
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echo "[VL53L0X] pinctrl debugfs 不可用"
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fi
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# 3. 最终确认
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if [ -c /dev/stmvl53l0x_ranging ]; then
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echo "[VL53L0X] OK — 设备就绪，可以使用"
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else
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echo "[VL53L0X] FAIL — 需要先配置内核/设备树中的 I2C 引脚复用"
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fi
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