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来自专栏全栈程序员必看
Qcom 平台 LK 阶段配置 I2C[通俗易懂]
qup_id 传参应该为5 即：0x70800000 + 0x0B5000 + 0x1000 * 5 = 0x78bA000 到此为止，从qup irq的信息和qup base addr的信息确认，那么I2C dprintf(CRITICAL, "leo i2c-%d (gpio10 & gpio11)\n", qup_id + 1); #endif /* End: add by leo for add i2c 代码修改： /* Begin: add by leo for add i2c-6(gpio_10 & gpio_11) */ #if 1 /* configure I2C SDA gpio */ dprintf(CRITICAL, "leo i2c-%d (gpio10 & gpio11)\n", qup_id + 1); #endif /* End: add by leo for add i2c 检查gpio配置查看I2C对应的gpio配置是否包含，否则去添加 /* Begin: add by leo for add i2c-6(gpio_10 & gpio_11) */ #if 1
1.2K50编辑于 2022-11-02
来自专栏Linux知识
i2c-tools快速调试E2PROM
有如下设备即可 [root@rk3288:/]# ls /dev/i2c* /dev/i2c-0 /dev/i2c-1 /dev/i2c-2 /dev/i2c-3 /dev/i2c-4 /dev/i2c
96410编辑于 2025-02-19
来自专栏韦东山嵌入式
Tina_Linux_PMU_开发指南
.20 cpusldo regulator.21 drivevbus 3.1.2 Virtual-consumer 在路径/sys/devices/platform/soc/7081400.s_twi/i2c cd /sys/devices/platform/soc/7081400.s_twi/i2c-6/6-0034/reg-virt-consumer.1 cat of_node/name //确认是否为DCDC1
3.6K21编辑于 2023-02-25