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authorAlan Stern <stern@rowland.harvard.edu>2009-12-07 21:01:37 +0300
committerGreg Kroah-Hartman <gregkh@suse.de>2009-12-11 22:55:25 +0300
commit8e4ceb38eb5bbaef22fc00abe9bc11e26bea2ab5 (patch)
tree7cb5fee6c50add1094aed430d46afeb2c7689b51 /include/linux/usb_usual.h
parent9af23624ae2c7978313b46e58fdc4ca5d8b799f5 (diff)
downloadlinux-8e4ceb38eb5bbaef22fc00abe9bc11e26bea2ab5.tar.xz
USB: prepare for changover to Runtime PM framework
This patch (as1303) revises the USB Power Management infrastructure to make it compatible with the new driver-model Runtime PM framework: Drivers are no longer allowed to access intf->pm_usage_cnt directly; the PM framework manages its own usage counters. usb_autopm_set_interface() is eliminated, because it directly sets intf->pm_usage_cnt. usb_autopm_enable() and usb_autopm_disable() are eliminated, because they call usb_autopm_set_interface(). usb_autopm_get_interface_no_resume() and usb_autopm_put_interface_no_suspend() are added. They correspond to pm_runtime_get_noresume() and pm_runtime_put_noidle() in the PM framework. The power/level attribute no longer accepts "suspend", only "on" and "auto". The PM framework doesn't allow devices to be forced into a suspended mode. The hub driver contains the only code that violates the new guidelines. It is updated to use the new interface routines instead. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/linux/usb_usual.h')
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