Pascal (fpc) library to manage V-USB relays
This library simplifies the handling of V-USB [1] relays identified by the system as USB HID devices. This relays are cheap and easy to find in many online shops. They can be used, in example to power off your router when internet connectivity is drop, and repower it on after some time.
It supports as USB API interface: -Native Windows (Shoud work from XP to 10, 32 and 64 bits) -libusb-1.0 (Linux 32 and 64 bits, and Windows 32 bits) -libusb-0.1 (Linux 32 and 64 bits)
Library defaults to: -Unix: libusb-1.0 -Windows: Windows
The use of libusb-1.0 can be forced by define "USBHID_LIBUSB10". "USBHID_QUIET" supresses any console output.
libusb-1.0 and Windows supports dynamic library loading using the define "USBHID_DYNAMIC".
License: LGLP [2] - The same as Free Pascal compiler and Lazarus LCL.
Inspired by: The project at https://github.com/pavel-a/usb-relay-hid
Copyright: José Mejuto (joshyfun at gmail.com)
References: [1] https://www.obdev.at/products/vusb/index.html [2] https://www.gnu.org/licenses/lgpl-3.0.txt