Based on kernel version 6.12.4. Page generated on 2024-12-12 21:01 EST.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | What: Raise a uevent when a USB charger is inserted or removed Date: 2020-01-14 KernelVersion: 5.6 Contact: linux-usb@vger.kernel.org Description: There are two USB charger states: - USB_CHARGER_ABSENT - USB_CHARGER_PRESENT There are five USB charger types: ======================== ========================== USB_CHARGER_UNKNOWN_TYPE Charger type is unknown USB_CHARGER_SDP_TYPE Standard Downstream Port USB_CHARGER_CDP_TYPE Charging Downstream Port USB_CHARGER_DCP_TYPE Dedicated Charging Port USB_CHARGER_ACA_TYPE Accessory Charging Adapter ======================== ========================== https://www.usb.org/document-library/battery-charging-v12-spec-and-adopters-agreement Here are two examples taken using ``udevadm monitor -p`` when USB charger is online:: UDEV change /devices/soc0/usbphynop1 (platform) ACTION=change DEVPATH=/devices/soc0/usbphynop1 DRIVER=usb_phy_generic MODALIAS=of:Nusbphynop1T(null)Cusb-nop-xceiv OF_COMPATIBLE_0=usb-nop-xceiv OF_COMPATIBLE_N=1 OF_FULLNAME=/usbphynop1 OF_NAME=usbphynop1 SEQNUM=2493 SUBSYSTEM=platform USB_CHARGER_STATE=USB_CHARGER_PRESENT USB_CHARGER_TYPE=USB_CHARGER_SDP_TYPE USEC_INITIALIZED=227422826 USB charger is offline:: KERNEL change /devices/soc0/usbphynop1 (platform) ACTION=change DEVPATH=/devices/soc0/usbphynop1 DRIVER=usb_phy_generic MODALIAS=of:Nusbphynop1T(null)Cusb-nop-xceiv OF_COMPATIBLE_0=usb-nop-xceiv OF_COMPATIBLE_N=1 OF_FULLNAME=/usbphynop1 OF_NAME=usbphynop1 SEQNUM=2494 SUBSYSTEM=platform USB_CHARGER_STATE=USB_CHARGER_ABSENT USB_CHARGER_TYPE=USB_CHARGER_UNKNOWN_TYPE |