I want to control a power socket with a USB port, but I cant find any code on how to send signals or pulses over the data lines in a USB port.
Is there a way to control this with some C or Objective-C code?
iMac (27-inch, Late 2012), OS X Mavericks (10.9.1)
What device are you communicating with? USB by itself will not control a power socket (or anything else really) it is a means to communicate with a device plugged into the USB.
The developer of the device you are trying to use will have to supply a driver or some low level code to control the device. Theb you communicate with the driver from your code.
What device are you communicating with? USB by itself will not control a power socket (or anything else really) it is a means to communicate with a device plugged into the USB.
The developer of the device you are trying to use will have to supply a driver or some low level code to control the device. Theb you communicate with the driver from your code.
It is going to be a device I hope to design myself, it will consist of some device that can analyse pulses from the USB port and seperate that into multiple signals to some transistors that control the mains power
Then you will need to write the driver.
You probably should start here Hardware and Drivers - Apple Developer
also this PL2303 USB to Serial Driver for Mac OS X | Free software ... might help
How can I send a signal over USB data lines in Xcode
