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SubjectRe: [PATCH] get USB suspend to work again on 2.6.17-mm1
Greg KH napsal(a):
> Mattai and Jiri, can you try the patch below to see if it fixes the USB
> suspend problem you are seeing with 2.6.17-mm1?
>
> David, we really should not be caring about what the children of a USB
> device is doing here, as who knows what type of "device" might hang off
> of a struct usb_device. This patch is just a band-aid around this area,
> until Alan's patches fix up everything "properly" :)
>
> thanks,
>
> greg k-h
>
> -----------------------------
> Subject: USB: get USB suspend to work again
>
> Yeah, it's a hack, but it is only temporary until Alan's patches
> reworking this area make it in. We really should not care what devices
> below us are doing, especially when we do not really know what type of
> devices they are. This patch relies on the fact that the endpoint
> devices do not have a driver assigned to us.
>
> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
>
> ---
> drivers/usb/core/usb.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> --- gregkh-2.6.orig/drivers/usb/core/usb.c
> +++ gregkh-2.6/drivers/usb/core/usb.c
> @@ -991,6 +991,8 @@ void usb_buffer_unmap_sg (struct usb_dev
>
> static int verify_suspended(struct device *dev, void *unused)
> {
> + if (dev->driver == NULL)
> + return 0;
> return (dev->power.power_state.event == PM_EVENT_ON) ? -EBUSY : 0;
> }
>

Yeah, it works just fine.

regards,
--
Jiri Slaby www.fi.muni.cz/~xslaby
\_.-^-._ jirislaby@gmail.com _.-^-._/
B67499670407CE62ACC8 22A032CC55C339D47A7E

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