Commit Graph

4 Commits

Author SHA1 Message Date
yunwei37
277ecbaf9d Add HID-BPF tutorial and implementation for virtual mouse input modification
- Introduced a comprehensive tutorial in README.md explaining how to fix broken HID devices using eBPF without kernel patches.
- Implemented a userspace program (hid-input-modifier.c) that creates a virtual HID mouse using the uhid interface and sends synthetic mouse events.
- Developed a BPF program (hid-input-modifier.bpf.c) that intercepts HID events and modifies mouse movement data, effectively doubling the X and Y movement.
- Created necessary header files (hid_bpf.h, hid_bpf_defs.h, hid_bpf_helpers.h) to define structures and helper functions for the BPF program.
- Added functionality to find and manage the virtual HID device, ensuring seamless integration with the BPF program.
2025-10-05 22:40:58 -07:00
yunwei37
f3c4a3ee64 Refactor test output in arena_list.c to remove redundant print statements
- Removed unnecessary print statements for arena sum and number of elements in the test_arena_list_add_del function.
- Simplified output to focus on essential test results, improving clarity and conciseness of the test logs.
2025-10-06 06:24:08 +08:00
yunwei37
6042594b8c Add eBPF tutorial and monitoring scripts for GPU activity
- Introduced a comprehensive README.md detailing the use of eBPF for monitoring GPU activity through kernel tracepoints.
- Added bpftrace scripts for monitoring AMD GPU operations, including buffer object creation, command submission, and interrupts.
- Created a bpftrace script for tracking DRM GPU scheduler activity across all modern GPU drivers.
- Developed a bpftrace script to monitor display vertical blanking events for frame timing analysis.
- Implemented a bpftrace script for Intel i915 GPU activity, focusing on GEM object management, memory operations, and page faults.
2025-10-05 00:26:31 -07:00
yunwei37
1696b2b559 update 43 for xdp test 2024-11-30 02:10:57 +00:00