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gary-rowe / hid4java

A cross-platform Java Native Access (JNA) wrapper for the libusb/hidapi library. Works out of the box on Windows/Mac/Linux.
MIT License
229 stars 71 forks source link

Opening reopening devices #72

Closed MrHazee closed 4 years ago

MrHazee commented 6 years ago

Hi there! First, thanks for this beautiful api. Great!! But I have a couple of problems I just cant work out.

Win 10

First, If I connect to my device (both physically and software-wise) and then unplug the USB cable, I get tons of messeges to the Console. In my native language Swedish, it looks like this: "Enheten ?r inte ansluten." "Enheten ?r inte ansluten." "Enheten ?r inte ansluten." ...times infinity..

... which translates to "The device is not connected". I´ve attached a hidDeviceDetached-listener but despite that I get about 50 error messages before i can stop it. It lies in the JNA so I have my hand tied up. Any suggestions how I can solv this matter?

Second, I think I´ve read all the post about open a device, close a device, and the open it again. But I cant get it right. No matter what, i get "Device has not been opened" the second time I try to open it. Right now it feels like an impossible task.. I would like to release the handle, like resetting the application, but only the hid-part of it. I havent changed FILE_SHARE_READ | FILE_SHARE_WRITE yet, is that inside the .dll?? I´ve tried both t not make new instances of hidServices and to make new when I re-connect.. When Im hit my disconnect buttom I´ve tried this; hidDevice.close. hidServices.shutdown HidApi.Exit But nothing seems to work... Hope anyone can help me on this, ripping my hair of here.. Thanks! /Rasmus

gary-rowe commented 6 years ago

Hi! I'll be working on this library starting Mon 16th April in order to release version 0.6.0. I can take a look at this issue then.

MrHazee commented 5 years ago

Hi Gary, Hope ur good! Just wondering if you have any news on this subject? Best regards /Rasmus

gary-rowe commented 4 years ago

Hi. It's been a while but I'm finally able to get back to regularly working on this library. I've pushed some changes to develop-SNAPSHOT that may fix this. If you're able could you review?

gary-rowe commented 4 years ago

Given that others have had success with recent changes and Windows I'll mark this as closed.

MrHazee commented 3 years ago

Hi Gary, Thanks for getting back to me and Im sorry I could not review, I was deep down in other projects at the time.