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  1. 21 5月, 2010 1 次提交
  3. 03 3月, 2010 3 次提交
    • A
      USB: change handling of negative autosuspend delays · 5899f1e0
      由 Alan Stern 提交于 
      This patch (as1327) changes the way negative autosuspend delays
prevent device from autosuspending.  The current code checks for
negative values explicitly in the autosuspend_check() routine.  The
updated code keeps things from getting that far by using
usb_autoresume_device() to increment the usage counter when a negative
delay is set, and by using usb_autosuspend_device() to decrement the
usage counter when a non-negative delay is set.

This complicates the set_autosuspend() attribute method code slightly,
but it will reduce the overall power management overhead.
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      5899f1e0
    • A
      USB: implement usb_enable_autosuspend · 088f7fec
      由 Alan Stern 提交于 
      This patch (as1326) adds usb_enable_autosuspend() and
usb_disable_autosuspend() routines for use by drivers.  If a driver
knows that its device can handle suspends and resumes correctly, it
can enable autosuspend all by itself.  This is equivalent to the user
writing "auto" to the device's power/level attribute.

The implementation differs slightly from what it used to be.  Now
autosuspend is disabled simply by doing usb_autoresume_device() (to
increment the usage counter) and enabled by doing
usb_autosuspend_device() (to decrement the usage counter).

The set_level() attribute method is updated to use the new routines,
and the USB Power-Management documentation is updated.

The patch adds a usb_enable_autosuspend() call to the hub driver's
probe routine, allowing the special-case code for hubs in quirks.c to
be removed.
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      088f7fec
    • O
      USB: storage: Never reset devices that will morph to an old mode · 5d398779
      由 Oliver Neukum 提交于 
      Some devices must be switched to a new mode to fully use them.
A reset would make them revert to the old mode. Therefore a reset
must not be used for error handling with such devices.
Signed-off-by: NOliver Neukum <oliver@neukum.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      5d398779
  5. 25 3月, 2009 1 次提交
  7. 17 6月, 2008 1 次提交
  9. 30 5月, 2008 1 次提交
  11. 25 4月, 2008 2 次提交
    • A
      USB: enable USB-PERSIST by default · 9214d1d8
      由 Alan Stern 提交于 
      This patch (as1052) enables USB-PERSIST for all devices by default.
The user won't have to remember to enable it explicitly for devices
containing mounted filesystems.

Eventually userspace tools like hal may be able to set the persist
attribute automatically when a filesystem is mounted on a USB device.
When that time comes this patch can be reverted, if people think it
matters.

This approach has the advantage of giving the user the ability to turn
off USB-PERSIST for devices with mounted filesystems, rather than
making the kernel always assume it should be on.
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      9214d1d8
    • A
      USB: remove CONFIG_USB_PERSIST setting · feccc30d
      由 Alan Stern 提交于 
      This patch (as1047) removes the USB_PERSIST Kconfig option, enabling
it permanently.  It also prevents the power/persist attribute from
being created for hub devices; there's no point in having it since
USB-PERSIST is always turned on for hubs.
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      feccc30d
  13. 25 3月, 2008 1 次提交
  15. 05 3月, 2008 1 次提交
  17. 22 2月, 2008 2 次提交
  19. 13 10月, 2007 1 次提交
    • A
      USB: remove USB_QUIRK_NO_AUTOSUSPEND · a691efa9
      由 Alan Stern 提交于 
      This patch (as995) cleans up the remains of the former NO_AUTOSUSPEND
quirk.  Since autosuspend is disabled by default, we will let
userspace worry about which devices can safely be suspended.  Thus the
lengthy series of quirk entries is no longer needed, and neither is
the quirk ID.  I suppose someone might eventually run across a hub
that can't be suspended; let's ignore the possibility for now.

The patch also cleans up the hasty way in which autosuspend gets
disabled.  Setting udev->autosuspend_delay to -1 wasn't quite right,
because the value is always supposed to be a multiple of HZ.  It's
better to leave the delay value alone and set autosuspend_disabled,
which is what the quirk routine used to do.
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      a691efa9
  21. 13 9月, 2007 1 次提交
  23. 11 9月, 2007 6 次提交
  25. 23 8月, 2007 5 次提交
  27. 31 7月, 2007 4 次提交
  29. 13 7月, 2007 4 次提交
  31. 28 4月, 2007 1 次提交
  33. 27 3月, 2007 1 次提交
  35. 24 2月, 2007 2 次提交