Add support for Goodix 27c6:5130 (Huawei MateBook)

[sorcnr]

Device Information

• Vendor ID / Product ID: 27c6:5130
• Laptop: Huawei MateBook
• Device Name: Goodix Fingerprint Device

lsusb -v output

Bus 001 Device 003: ID 27c6:5130 Shenzhen Goodix Technology Co.,Ltd. Goodix Fingerprint Device bDeviceClass: 2 Communications bNumConfigurations: 1

Interface 0: CDC Communications

bInterfaceClass: 2 Communications
bInterfaceSubClass: 1 Direct Line
EP 2 IN (Interrupt, 8 bytes)
Interface 1: CDC Data

bInterfaceClass: 10 CDC Data
EP 1 OUT (Bulk, 64 bytes)
EP 1 IN (Bulk, 64 bytes)

What was tried

1. Added device ID to goodixmoc driver
2. Configured dynamic interface/endpoint selection (Interface 1, EP 1 IN/OUT)
3. Added CDC ACM initialization (SET_CONTROL_LINE_STATE on Interface 0)

Result

• Device is detected and probe succeeds
• Transfer times out during initialization (MOC_CMD0_GET_VERSION command)
• The device appears to use a different protocol than standard Goodix MOC sensors

Notes

• Device presents as CDC ACM (modem-like) device
• iSerial: 0 (no serial number)
• Full Speed USB (12Mbps)

Would appreciate any guidance on reverse-engineering the protocol or if there are existing efforts for this device.