[PATCH 0/3] USB: add API for interface driver to vote for autosuspend

From	Yueyao Zhu <yueyao.zhu@gmail.com>
Newsgroups	linux.kernel
Subject	[PATCH 0/3] USB: add API for interface driver to vote for autosuspend
Date	2017-06-09 00:00 +0200
Message-ID	<tQdDb-1g9-5@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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From: Yueyao Zhu <yueyao@google.com>

Currently, if a USB driver would like to enable autosuspend on the USB
device, usb_enable_autosuspend() seems to be the only option. However,
this acts on the device level, and other interfaces might not desire
to autosuspend the USB device.

For example, for the usb digital audio driver to enable autosuspend on
a device, calling usb_enable_autosuspend() from the interface driver
might not be a good idea as the USB device might have a keyboard HID
interface which generally doesn't handle autosupend very well.

This patch series introduces an API for interface driver to vote
for autosuspend on the interface, and when all interfaces agree to
it, autosuspend can then be enabled on the usb device.

Yueyao Zhu (3):
  USB: add API for interface driver to vote for autosuspend
  HID: usbhid: enable autosuspend for devices whose ...
  sound: usb: allow interfaces the driver claims to autosuspend

 drivers/hid/usbhid/hid-core.c | 37 +++++++++++++++++++++++++++++
 drivers/usb/core/driver.c     | 55 +++++++++++++++++++++++++++++++++++++++++++
 include/linux/usb.h           | 10 ++++++++
 sound/usb/card.c              |  3 +++
 4 files changed, 105 insertions(+)

-- 
2.13.0.506.g27d5fe0cd-goog

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[PATCH 0/3] USB: add API for interface driver to vote for autosuspend Yueyao Zhu <yueyao.zhu@gmail.com> - 2017-06-09 00:00 +0200
  [PATCH 3/3] sound: usb: allow interfaces that the driver claims to autosuspend Yueyao Zhu <yueyao.zhu@gmail.com> - 2017-06-09 00:00 +0200
  [PATCH 2/3] HID: usbhid: enable autosuspend for devices whose ... Yueyao Zhu <yueyao.zhu@gmail.com> - 2017-06-09 00:10 +0200
  Re: [PATCH 0/3] USB: add API for interface driver to vote for  autosuspend Alan Stern <stern@rowland.harvard.edu> - 2017-06-09 17:00 +0200

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