docs(a7z): add USB-C Power port as host mode overlay guide#1492
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tangzz-radxa wants to merge 5 commits intoradxa-docs:mainfrom
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docs(a7z): add USB-C Power port as host mode overlay guide#1492tangzz-radxa wants to merge 5 commits intoradxa-docs:mainfrom
tangzz-radxa wants to merge 5 commits intoradxa-docs:mainfrom
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Add instructions for enabling USB-C Power port as host mode on A7Z using device tree overlay. This allows connecting peripherals like wireless mouse receivers and keyboards to the USB-C Power接口. The overlay sets usb_port_type to 0x01 (host mode) on usbc0. Also applicable to Cubie A7S.
… guide Reviewer xzl01 noted that A7Z has no DC power interface. The USB-C Power port is interface ① (USB-C 2.0 OTG & Power) as documented in hardware-info.md. Fixes radxa-docs#1492 review comment.
…C host guide The cubie-a7a-radxa-25w-poe.dts overlay is for Cubie A7A PoE support, not A7Z USB-C host mode. Remove this misleading reference and instead provide a minimal self-contained overlay example with proper explanation of the usb_port_type setting.
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Fixed: 已移除对 cubie-a7a-radxa-25w-poe.dts 的引用。该 overlay 面向 Cubie A7A 的 PoE 功能，与 A7Z USB-C Power 接口的 host 模式配置无关。 现在改为提供最小可用的 overlay 示例（包含 /dts-v1/、/plugin/、compatible 和 &usbc0 usb_port_type 设置），并补充了 usb_port_type 设置项的说明，便于用户理解。 |
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Hi @xzl01, the CHANGES_REQUESTED review has been addressed with the following commits:
The branch has been updated. Could you please re-review when you have time? |
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Description
Add instructions for enabling USB-C Power port as host mode on A7Z using device tree overlay. This allows connecting peripherals like wireless mouse receivers and keyboards to the USB-C Power接口 (the USB-C port next to the DC power barrel jack).
Changes
docs/cubie/a7z/hardware-use/type-c.mdMotivation
Customers frequently ask why peripherals don't work when connected to the USB-C Power port. The port defaults to device mode and requires a device tree overlay to switch to host mode.