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feat: add Kochi Hummingbird 68 system-mode control - #2
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snekxs merged 2 commits intoOct 11, 2026
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The title clearly and concisely describes the main change: adding system-mode control for the Kochi Hummingbird 68. |
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Inline comments:
Review comments at @src/drivers/kochi/hid.ts:
- Around line 31-35: Update the open flow in the method containing this
`device.open()` await to recheck the client’s closed or faulted state after the
await; if close occurred, release the device and return before adding the
inputreport listener or sending any command. Preserve normal listener setup when
the client remains open, and cover the delayed-open race in a test.
- Line 25: Update isSupported() to retain its exact vendor and product checks
while recursively searching each collection and its children for the
KOCHI_CONFIG_USAGE_PAGE and KOCHI_CONFIG_USAGE match; add a test confirming a
matching nested collection is supported.
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📒 Files selected for processing (14)
README.mddocs/kochi-hb68.mdpackage.jsonsrc/drivers/keyboard-types.tssrc/drivers/kochi/hid.test.tssrc/drivers/kochi/hid.tssrc/drivers/registry.test.tssrc/drivers/registry.tssrc/drivers/vendors.tssrc/index.tssrc/kochi/fixtures/macos-mode.jsonsrc/kochi/index.tssrc/kochi/protocol.test.tstsconfig.json
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The Kochi Hummingbird 68 is not recognized by the keyboard registry. This adds a narrowly scoped driver for USB
1CA2:0901, usageFFA0:1, to read and change Windows/Mac mode. Each write must be acknowledged and confirmed by both mode queries before returning success.The independent codec is based on the public HB68 web configurator, its bundled implementation, and sanitized packets recorded from a physical
KOCHI68 Keyboardon macOS. No vendor bundle is copied into this package. Scope is limited to naming and system mode; no analog, lighting, remapping, flash, firmware, reset, or calibration commands are exposed.Validation:
npm run checkon Node.js 24: build, 104 passing tests, package dry-run.Firmware version, unplug persistence, and Linux/Windows host operation remain unverified. Evidence and limitations are documented in
docs/kochi-hb68.md; raw mode fixtures contain no serials or keystrokes.Companion OpenMouse PR #763 adds discovery, a system-mode card, and overview-only navigation for this device. Other HB68 features remain outside this change.
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