Hi, Greg KH <greg@xxxxxxxxx> writes: > On Tue, Jan 17, 2017 at 10:07:40AM +0200, Felipe Balbi wrote: >> >> Hi, >> >> Jim Lin <jilin@xxxxxxxxxx> writes: >> > When gadget is disconnected, running sequence is like this. >> > . android_work: sent uevent USB_STATE=DISCONNECTED >> >> I'm gonna have to ask you to try with actual mainline where there are no >> Android changes. > > What is android changing these days in the gadget stack that is not > already upstream? quite a bit, actually. They have their own android_setup() and an android_worker thread for notifications. These notifications actually duplicate (poorly) what we already have for usb_gadget_set_state(). They also completely ditch composite_setup() to reimplement it with their own additions. There's also an android class added to configfs. Android-specific uevents. Android-specific ->disconnect() implementation, overwriting what we have on composite.c. I just took a diff from v4.4.10 to current Android head which we're using for some other project drivers/usb/gadget/Kconfig | 50 +++++ drivers/usb/gadget/composite.c | 6 + drivers/usb/gadget/configfs.c | 264 +++++++++++++++++++++++- drivers/usb/gadget/function/Makefile | 8 + drivers/usb/gadget/function/f_accessory.c | 1335 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ drivers/usb/gadget/function/f_audio_source.c | 1060 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ drivers/usb/gadget/function/f_fs.c | 11 +- drivers/usb/gadget/function/f_midi.c | 66 ++++++ drivers/usb/gadget/function/f_mtp.c | 1533 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ drivers/usb/gadget/function/f_mtp.h | 18 ++ drivers/usb/gadget/function/f_ptp.c | 38 ++++ drivers/usb/gadget/function/f_rndis.c | 30 +++ drivers/usb/gadget/function/rndis.c | 112 ++++++++-- drivers/usb/gadget/function/rndis.h | 2 + drivers/usb/gadget/function/u_ether.c | 305 ++++++++++++++++++++++------ drivers/usb/gadget/function/u_ether.h | 3 + drivers/usb/gadget/functions.c | 2 +- 17 files changed, 4757 insertions(+), 86 deletions(-) rather extensive. -- balbi
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