如何使用IIO子系统读取陀螺仪数据

[jy03909656]

你好，

kernel : linux 3.10.17

使用iio子系统驱动陀螺仪mpu6050，现在遇到的问题是如何使用iio子系统去读取数据，请高人指点，谢谢。

[jimmychan]

you may get some idea from this:

https://community.nxp.com/thread/315448

[jy03909656 · Accepted solution]

Thanks a lot. I also found other information and tell me how to setup the continuous mode. But, into the problem, it is not successful for me to setup the continuous mode. I show my work:

cd /sys/bus/iio/devices

echo 123 > iio_sysfs_trigger/add_trigger

[jy03909656]

ｓｏｒｒｙ，　ｗｒｏｎｇ　ｏｐｅｒａｔｉｏｎ．

Ａｆｔｅｒ　ｔｈａｔ，　Ｉ　ｃａｎ　ｆｉｎｄ　ｔｈｅ　ｎｅｗ　ｔｒｉｇｇｅｒ　ｎａｍｅｄ　ｔｒｉｇｇｅｒ１．

Ｓｏ，　Ｉ　ｔｒｉｅｄ　ｔｏ　ｃｏｎｆｉｇｕｒｅ　ｔｈｅ　ｔｒｉｇｇｅｒ　ｉｎ　ｆｉｌｅ　ｏｆ　＂ｉｉｏ：ｄｅｖｉｃｅＸ／ｔｒｉｇｇｅｒ／＂　ｂｙ　　ｃｍｄ　ｏｆ　＂ｅｃｈ０　ｓｙｓｆｓｔｒｉｇ１２３　＞　ｃｕｒｒｅｎｔ＿ｔｒｉｇｇｅｒ＂，　ｈｏｗｅｖｅｒ，　ｒｅｔｕｒｎ　ｔｈｅ　ｅｒｒｏｒ　ｗｉｔｈ　＂ｅｃｈｏ：ｗｒｉｔｅ　ｅｒｒｏｒ：　Ｉｎｖａｌｉｄ　ａｒｇｕｍｅｎｔ＂．Ｉ　ｄｏｎｔ　ｋｎｏｗ　ｗｈａｔ　ｈａｐｐｅｎ？