On Sun, 11 Jun 2006, naveen kumar wrote:
> Hi ,
>
> I changed my kernel to 2.6.14 version.Still the same
> piece of code is present in this kernel also.Who will
> call suspend if linux.
>
> Which is the function call for suspend (
> usb_suspend_device (or) ehci_hub_suspend ).What is the
> exact difference between these two
> calls.ehci_hub_suspend is under CONFIG_USB_SUSPEND
> option in kernel config.
You can call ehci_hub_suspend by doing this (as root):
echo -n 2 >/sys/bus/usb/devices/1-0:1.0/power/state
if your EHCI controller is registered as the first USB bus. If it is
registered under a different bus number, change the "1-0" above to "B-0"
where B is the actual bus number.
Alan Stern
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