1 What: Raise a uevent when a USB char
2 Date: 2020-01-14
3 KernelVersion: 5.6
4 Contact: linux-usb@vger.kernel.org
5 Description: There are two USB charger stat
6
7 - USB_CHARGER_ABSENT
8 - USB_CHARGER_PRESENT
9
10 There are five USB charger typ
11
12 ======================== ====
13 USB_CHARGER_UNKNOWN_TYPE Char
14 USB_CHARGER_SDP_TYPE Stan
15 USB_CHARGER_CDP_TYPE Char
16 USB_CHARGER_DCP_TYPE Dedi
17 USB_CHARGER_ACA_TYPE Acce
18 ======================== ====
19
20 https://www.usb.org/document-l
21
22 Here are two examples taken us
23 USB charger is online::
24
25 UDEV change /devices/so
26 ACTION=change
27 DEVPATH=/devices/soc0/usbp
28 DRIVER=usb_phy_generic
29 MODALIAS=of:Nusbphynop1T(n
30 OF_COMPATIBLE_0=usb-nop-xc
31 OF_COMPATIBLE_N=1
32 OF_FULLNAME=/usbphynop1
33 OF_NAME=usbphynop1
34 SEQNUM=2493
35 SUBSYSTEM=platform
36 USB_CHARGER_STATE=USB_CHAR
37 USB_CHARGER_TYPE=USB_CHARG
38 USEC_INITIALIZED=227422826
39
40 USB charger is offline::
41
42 KERNEL change /devices/s
43 ACTION=change
44 DEVPATH=/devices/soc0/usbp
45 DRIVER=usb_phy_generic
46 MODALIAS=of:Nusbphynop1T(n
47 OF_COMPATIBLE_0=usb-nop-xc
48 OF_COMPATIBLE_N=1
49 OF_FULLNAME=/usbphynop1
50 OF_NAME=usbphynop1
51 SEQNUM=2494
52 SUBSYSTEM=platform
53 USB_CHARGER_STATE=USB_CHAR
54 USB_CHARGER_TYPE=USB_CHARG
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