On 20-01-14 10:48:13, Greg KH wrote: > On Tue, Jan 14, 2020 at 05:38:58PM +0800, Peter Chen wrote: > > When the USB charger is inserted or removed, the users could get > > USB charger state and type through the uevent. > > > > Signed-off-by: Peter Chen <peter.chen@xxxxxxx> > > --- > > Changes for v3: > > - Change kernel version for 5.6, and delete the kernel printk time > > > > Documentation/ABI/testing/usb-charger-uevent | 45 ++++++++++++++++++++ > > 1 file changed, 45 insertions(+) > > create mode 100644 Documentation/ABI/testing/usb-charger-uevent > > > > diff --git a/Documentation/ABI/testing/usb-charger-uevent b/Documentation/ABI/testing/usb-charger-uevent > > new file mode 100644 > > index 000000000000..94ab16768e49 > > --- /dev/null > > +++ b/Documentation/ABI/testing/usb-charger-uevent > > @@ -0,0 +1,45 @@ > > +What: Raise a uevent when a USB charger is inserted or removed > > +Date: 2020-01-14 > > +KernelVersion: 5.6 > > +Contact: linux-usb@xxxxxxxxxxxxxxx > > +Description: There are two USB charger states: > > + USB_CHARGER_ABSENT > > + USB_CHARGER_PRESENT > > + There are five USB charger types: > > + USB_CHARGER_UNKNOWN_TYPE > > + USB_CHARGER_SDP_TYPE > > + USB_CHARGER_CDP_TYPE > > + USB_CHARGER_DCP_TYPE > > + USB_CHARGER_ACA_TYPE > > Any explaination for what these different types really are? What is a > "CDP"? "ACA"? where would one find that information out? I will add explanation for it, thanks. -- Thanks, Peter Chen