https://bugzilla.kernel.org/show_bug.cgi?id=215945 Bug ID: 215945 Summary: No way to get user buffer in ll_driver->raw_request of hid driver sent via hidraw HIDIOCGFEATURE Product: Drivers Version: 2.5 Kernel Version: 5.17.5 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: USB Assignee: drivers_usb@xxxxxxxxxxxxxxxxxxxxxx Reporter: ga2mer@xxxxxxxxx Regression: No I am writing support in the custom hid driver for the screen built into the Thrustmaster T248 steering wheel. Unfortunately, I can't send what I want in any way and I have to repeat the flow of their Windows Kernel Driver. They use a dll to communicate with the screen, which sends a feature report via HidD_GetFeature, which is sent to their kernel driver and they use one report id per bunch of actions: ef 75 .. .. .. ef 17 .. .. .. ef 7d .. .. .. And unfortunately (as I understood from the source code) hidraw_get_report sends an empty buffer to my raw_request and I can't understand what this report about. It would be nice if it was possible to take the user buffer from somewhere. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
