Hello All I'm new to libusb (and programming usb) so am not clear on a host of things but am making lots of progress.
In an email to libusb I wrote: I'm trying to get a debug endpoint on the open firmware for an atheros usb wifi stick (ar9271) with a fusb200 controller. All the bits and pieces are in place, with nothing working but with indications that things are happening. What I am concerned about is the error message for something like: err = libusb_bulk_transfer(usb_handle, ..... with: bulk transfer in failed: LIBUSB_ERROR_IO Is it failing because my code currently is a mess (hopefully) or because from reading the device descriptors ( Unfortunatelly residing in ROM and unchangeable) it already knows (in this case ) that there are only 6 endpoints, even though on the stick booting I have added another 2 functional endpoints? and libusb wrote back If you can not change the USB Descriptors then the newly added endpoints will not be functional. So I am writing here because I am guessing what I have to to occurs at a lower level than libusb. I believe I can change the Device descriptors in firmware, upload the new firmware and reboot the stick but wouldn't the usb subsystem have the old device descriptor from the previous hotplug/system boot? If so then somehow I need to to tell the usb subsystem to re-request the device descriptor. kernel calls are okay. Any thoughts? Bruce -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html