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WebHID driver for the Nintendo Switch Pro Controller and Joy-Con (R) that reads NTAG215 tags (Amiibo) via the controller's built-in NFC reader. Reuses the existing AmiiboScanner UI. Protocol overview: - USB handshake (0x80 reports) with Bluetooth fallback - MCU initialized to NFC mode via subcommands and config packets - NTAG215 read delivered in two fragments (245 + 295 bytes) - CRC-8-CCITT checksums on all MCU/NFC command payloads - Continuous NFC polling with tag detect/remove tracking Known limitation: Linux HID descriptor omits report 0x31, blocking MCU/NFC access. Works on macOS and Windows. References: github.com/aka256/joycon-webhid (MIT) github.com/CTCaer/jc_toolkit (MIT) github.com/dekuNukem/Nintendo_Switch_Reverse_Engineering
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Summary
Known limitation
Linux HID descriptor omits report 0x31, blocking MCU/NFC access. Works on macOS and Windows.
Sources
Test plan