Messages in this thread | | | From | Andrey Konovalov <> | Date | Tue, 13 Jun 2017 14:21:08 +0200 | Subject | gadgetfs: how to wait for USB device initialization? |
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Hi!
I'm trying to use gadgetfs to fuzz USB device drivers by simply connecting random devices for now.
What I want to achieve right now is the following:
1. mount gadgetfs 2. emulate connection of a new USB device 3. wait for the device to finish initializing 4. unmount gadgetfs 5. goto 1
The question is how do I wait for the device to finish initializing (the corresponding USB driver to finish probing?) before unmounting gadgetfs? As I understand, when I write device description to "/dev/gadget/dummy_udc" the initialization happens asynchronously after writing is done.
To mount and unmount gadgetfs right now I do: mount("none", "/dev/gadget", "gadgetfs", 0, NULL) umount2("/dev/gadget", MNT_FORCE | MNT_DETACH)
Thanks!
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