feat(tg5040): keep device awake while connected as a USB gadget#783
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Pobega wants to merge 2 commits into
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feat(tg5040): keep device awake while connected as a USB gadget#783Pobega wants to merge 2 commits into
Pobega wants to merge 2 commits into
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Add an opt-in "Keep awake over USB" setting that prevents screen-off and deep sleep while the device is enumerated as a USB gadget by a host, as distinct from merely charging. Detection reads /sys/class/udc/*/state and treats "configured" as connected (PLAT_isUSBConnected), so it reflects an active data connection rather than power presence. This matters when the battery is full: charging already blocks sleep, but a full battery on USB would otherwise let the device sleep and drop the connection. The state is polled on the existing battery thread into a new pwr.is_usb_connected atomic and, gated by CFG_getKeepAwakeWhenUSB, is factored into both PWR_preventAutosleep() (no screen-off) and the PWR_waitForWake() deep-sleep deferral, mirroring how is_charging is handled. Setting defaults to off and is exposed in Settings under the tg5040-only block. tg5050 and desktop get PLAT_isUSBConnected stubs returning 0. Disclosure: LLMs were used to develop this code.
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I tested this on a TrimUI Brick. I do not own any other |
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Add an opt-in "Keep awake over USB" setting that prevents screen-off and deep sleep while the device is enumerated as a USB gadget by a host, as distinct from merely charging.
Detection reads /sys/class/udc/*/state and treats "configured" as connected (PLAT_isUSBConnected), so it reflects an active data connection rather than power presence. This matters when the battery is full: charging already blocks sleep, but a full battery on USB would otherwise let the device sleep and drop the connection.
The state is polled on the existing battery thread into a new pwr.is_usb_connected atomic and, gated by CFG_getKeepAwakeWhenUSB, is factored into both PWR_preventAutosleep() (no screen-off) and the PWR_waitForWake() deep-sleep deferral, mirroring how is_charging is handled.
Setting defaults to off and is exposed in Settings under the tg5040-only block. tg5050 and desktop get PLAT_isUSBConnected stubs returning 0.
Disclosure: LLMs were used to develop this code.