Jared Vacanti 5b34908a21 Add driver for SecuGen Hamster Pro 20 ... Add support for the SecuGen Hamster Pro 20 (1162:2200), a 500 DPI press-type optical scanner built around the SIDO020A sensor. The protocol was reverse-engineered from USB packet captures. The sensor is configured over I2C-tunneled vendor control transfers and streams 956x688 raw frames over the bulk endpoint, read in 64KB chunks so the standard pcap-based test tooling can record full frames (the kernel usbmon interface truncates single URBs at ring_size/5). Frames are processed with band compensation, an edge-aware unsharp mask, a fixed-point bilinear downsample to 300x400, flat-field blending and directional sharpening, driven by per-device factory calibration data read from the device firmware. The fixed-point pipeline keeps the output bit-identical across compilers and architectures for the image comparison test. The sensor has no proximity hardware and its GET_STATUS request always returns zeros, so finger presence is detected by polling preview frames and comparing the mean brightness of the central region against a calibration background frame. Includes a umockdev capture/replay test with a reference image. Closes: https://gitlab.freedesktop.org/libfprint/libfprint/-/work_items/353		2026-06-17 19:47:23 +02:00
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autosuspend.hwdb	Add driver for SecuGen Hamster Pro 20	2026-06-17 19:47:23 +02:00
meson.build	meson: Autodetect whether autosuspend rules are provided by udev	2021-03-03 16:45:41 +00:00