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| author | Alan Stern <stern@rowland.harvard.edu> | 2009-12-07 21:01:37 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-12-11 22:55:25 +0300 |
| commit | 8e4ceb38eb5bbaef22fc00abe9bc11e26bea2ab5 (patch) | |
| tree | 7cb5fee6c50add1094aed430d46afeb2c7689b51 /include/linux/usb_usual.h | |
| parent | 9af23624ae2c7978313b46e58fdc4ca5d8b799f5 (diff) | |
| download | linux-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')
0 files changed, 0 insertions, 0 deletions