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We have to use the interface number and index, but then most devices just reply with LIBUSB_TRANSFER_STALL (not supported) anyway.
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@GamePad64 please |
nacho
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Nov 23, 2023
| if (g_error_matches(error_local, | ||
| G_USB_DEVICE_ERROR, | ||
| G_USB_DEVICE_ERROR_NOT_SUPPORTED)) { | ||
| g_debug("ignoring: %s", error_local->message); |
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I kind of feel that it would be more correct to report an error than an empty buffer
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I initially thought so too; but I've yet to find a device that reports two HID descriptors and actually allows you to request the non-default one. I suspect we have a deeper bug somewhere, but interestingly sudo lsusb -vvvv also shows the same fault.
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We have to use the interface number and index, but then most devices just reply with LIBUSB_TRANSFER_STALL (not supported) anyway.