For code which interacts with (or is) the Gadget Filesystem, used for implementing USB peripherals on Linux.
GadgetFS allows user-space programs to implement USB gadgets.
Questions tagged [gadgetfs]
3 questions
0
votes
0 answers
libusb bulk transfer to an HID GadgetFS error: data padded with zeros
I have created a gadget HID device on embedded linux.
-It's a high-speed device
and has two endpoint In and Out,
both endpoints are bulk endpoints
and have 512 Bytes report length each.
I have installed winusb driver and associated it to my device…
0
votes
0 answers
Reading data from usb using ffs
I’m facing a problem where I’m unable to reliably read data from my usb endpoints. My ffs defines the following eps:
Ep0 = control
Ep1 = in
Ep2 = out
I have a simple ::read() call that is blocked on int fd = ::open(ep1, O_RDONLY). Problem is that…
igal k
- 1,883
- 2
- 28
- 57
0
votes
1 answer
Why does gadgetfs sometimes fail with EBUSY when I reply to a string request?
I have a Variscite DART-MX8M evaluation board that I'm trying to use as a USB gadget, so I've written a user-mode gadget driver which talks to gadgetfs (mounted on /dev/gadget). It always returns a device descriptor to the host machine, but…
Toby Speight
- 27,591
- 48
- 66
- 103