Re: Async suspend-resume patch w/ completions (was: Re: Asyncsuspend-resume patch w/ rwsems)

[Alan Stern]

On Sun, 20 Dec 2009, Rafael J. Wysocki wrote:

> BTW, what's the right place to call device_enable_async_suspend() for USB
> devices?

For USB devices, it's in drivers/usb/core/hub.c:usb_new_device() 
anywhere before the call to usb_device_add().

For USB interfaces, it's in 
drivers/usb/core/message.c:usb_set_configuration() before the call to 
device_add().

For USB endpoints, it's in 
drivers/usb/core/endpoint.c:usb_create_ep_devs() before the call to 
device_register().

However you won't need to do it for interfaces and endpoints if you 
automatically treat as async any device without suspend/resume 
callbacks.

Alan Stern

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