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Documentation: Clarify HID_DESCRIPTOR_VENDOR documentation #146
I am working on a project trying to implement "vendor defined" HID data. I have it working sending 8 bytes of data in two directions but I can't seem to change the payload size as I want.
I'm using the
I understand that HID reports in general are quick confusing and I'm not looking for an explanation of that.
Specifically, I this extract from the docs is giving me pause:
Is the "specified length" the length of the resultant list of
How can a single length be specified in two places (IN and OUT)?
I'm also unclear on what each of the parameters does. The names
The GenericHID demo suggests
It's also not clear if I can mess with
I've tried looking at the
Any pointers greatly appreciated.
Well, I stayed up getting into the USB HID specifications and tried a couple more things. I'm not sure what I was doing wrong before but I can
After reading the documentation excerpt again, I believe I understand it now. Some thoughts:
The references to IN/OUT I understood to mean related to the