Library to enable user space application programs to communicate with USB devices
I was able to use this to write Visual C++ 2008 code on Windows 7 that talks to a FadeCandy to control my Christmas tree lights. It was easy to download and write working code, thanks! Suggestions include: 1) libusb.h has three structs with arrays with 0 elements. This causes compiler warnings as VC++ 2008 doesn't define __STDC_VERSION__. Is there a reason these cannot be defined as having one element? 2) since most functions return a return code into an int, it requires a cast to call libusb_strerror() without a warning or error. Is it not possible to simply have this function accept an int arg? 3) the documention is copious but I would have benefitted from an overview of USB, such as what "configurations" and "endpoints" are. 4) initial projects also seem to go much faster with good hello-world examples. listdevs.c was great for finding the device I needed, but it took a while to figure out that libusb_claim_interface() wasn't needed. I found some step-by-step instructions on how to call _open and _free_device_list, for instance, that didn't go on to state that I then had to claim an interface before using it.
Hi, Good library to work around usb devices. But, lsusb command shows devices that are detected early but currently disconnected. I connected a usb printer. lsusb showed the device correctly. But the same messages are shown even after disconnecting the device. Any work around or solution for this
good for playing around usb