Hello,
I have spent hours now trying to get communication working with a custom
USB device on Windows using libusbx. I have communication working through a
virtual com port so I believe the device is functioning as expected.
My device reports that it has 3 interfaces (0, 1, 2) and a total of 5 op
I'm not sure why it works like this but I found out what I was doing wrong
shortly after posting my question.
I was actually wasn't using the libusb driver (although I thought I tried
this). I got it working by using the libusbK-inf-wizard.exe from libusbk.
I replaced the driver with WinUSB.sys d
Hello,
I have a very basic program implementing two way communication with a
custom composite USB device using the WinUSB driver on Windows. I was
having some strange problems that I haven't been able to overcome
(partially documented at
http://stackoverflow.com/questions/13403681/libusb-windows-u
-to-UART serial
converter.
On Fri, Nov 16, 2012 at 1:30 AM, Xiaofan Chen wrote:
> On Fri, Nov 16, 2012 at 6:33 AM, Eric Lundby
> wrote:
> > Hello,
> >
> > I have a very basic program implementing two way communication with a
> custom
> > composite USB device usin
Well I have finally jumped back on this project.
It seems that the error I was encountering is related to issue #78
("[winusbx_claim_interface] failed to auto-claim interface 0"). When I
manually claim interface 0 before claiming interface 1 I no longer
receive an error.
I am however still unable
Pete:
Thank you for the links, that definitely got me started in the right
direction. I ended up getting things to work by sending a control
transfer that matched what I saw while sniffing using VCP.
Xiaofan:
Thank you. I will educate myself a bit more on the spec. I tried to
dive right in without
> Then why would you make this CDC ACM, instead of just using a custom
> interface that you control completely?
Couple reasons: This is chip is a drop in replacement on our hardware
and won't require any adjustments to the firmware running on the
device. Also, I didn't have much influence on the d
