PCM1864 驱动加载
Dear All:
请问PCM1864的驱动在设备树该如何描述呢:
1. 我使用的不是TI的LINUX内核,是另外一款SOC的LINUX内核
2. 我在设备树做了以下描述:
ps7-i2c@e0004000 {
bus-id = <0x0>;
clocks = <0x2 0x26>;
compatible = "cdns,i2c-r1p10";
clock-frequency = <0x186a0>;
interrupt-parent = <0x3>;
interrupts = <0x0 0x19 0x4>;
reg = <0xe0004000 0x1000>;
xlnx,has-interrupt = <0x0>;
pcm1864@4a {
compatible = "pcm1864";
reg = <0x4a>;
};
};
3. 我得到了以下错误信息:
pcm186x 0-004a: pcm186x_i2c_probe() i2c->addr=74
0-004a supply avdd not found, using dummy regulator
0-004a supply dvdd not found, using dummy regulator
0-004a supply iovdd not found, using dummy regulator
4. 系统起来后,我看不到声信息:
root@test:/sys/class/sound/timer# ls
dev power subsystem uevent
能在哪里找到PCM1864的完整驱动样例?包括设备树以及上层应用程序?
自己结帖: 关于调试的总结链接 http://blog.csdn.net/tea1896/article/details/77800116