如何从用户空间暂停Linux中的i2c设备？

Question

I am attempting to put a particular device into suspended mode, and have been unable to find a way to do this. I see in the kernel that a suspend command can be defined, but what is the user space analog to it, if there is one?

In this case, it is to allow me to mask an interrupt in a touchscreen controller before its power is removed.

edited to add additional info: Additional information: This is for an embedded device, using linux kernel 2.6

Answer 1

典型的顺序是向设备发送命令以使其进入“挂起”模式，然后将打开的文件描述符关闭到该设备。