Jason Kotzin wrote: > In windows, 8.1, I’m sending a vendor specific control request that looks > like the following: > > Broken down, this is what an example looks like where variable1 and variable2 > can be 0-255 > > rq = fl_send_msg(0x42, 0x3, variable1, variable2, buf[1], 1, 500)
Since we don't know what "fl_send_msg" is, it's a little hard to make an assessment. Are those parameters RequestType, Request, Index, and Value? Are you trying to send a buffer there? > The result is that the transfer fails with error code 87, “the parameter is > incorrect”. You are sending an outgoing vendor request to an endpoint. If the second parameter is Request, then you are sending to endpoint 3. To do that, Windows requires that you actually "own" the interface that contains endpoint 3. Have you already done that? It looks like you claimed interface 1. Does that hold endpoint 3? -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ------------------------------------------------------------------------------ Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk _______________________________________________ libusbx-devel mailing list libusbx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libusbx-devel
