linux-kernel - Re: [PATCH 1/3] ANDROID: usb: gadget: f_accessory: Add Android Accessory function

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Date:   Mon, 12 Oct 2020 13:24:10 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     rickyniu <rickyniu@...gle.com>
Cc:     balbi@...nel.org, astrachan@...gle.com, amit.pundir@...aro.org,
        lockwood@...roid.com, benoit@...roid.com, jackp@...eaurora.org,
        vvreddy@...eaurora.org, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org, kyletso@...gle.com
Subject: Re: [PATCH 1/3] ANDROID: usb: gadget: f_accessory: Add Android
 Accessory function

On Mon, Oct 12, 2020 at 07:10:22PM +0800, rickyniu wrote:
> From: Benoit Goby <benoit@...roid.com>
> 
> USB accessory mode allows users to connect USB host hardware
> specifically designed for Android-powered devices. The accessories
> must adhere to the Android accessory protocol outlined in the
> http://accessories.android.com documentation. This allows
> Android devices that cannot act as a USB host to still interact with
> USB hardware. When an Android device is in USB accessory mode, the
> attached Android USB accessory acts as the host, provides power
> to the USB bus, and enumerates connected devices.
> 
> Signed-off-by: Mike Lockwood <lockwood@...roid.com>
> [AmitP: Folded following android-4.9 commit changes into this patch
>         ceb2f0aac624 ("ANDROID: usb: gadget: accessory: Fix section mismatch")
>         Parts of e27543931009 ("ANDROID: usb: gadget: Fixes and hacks to make android usb gadget compile on 3.8")
>         1b07ec751563 ("ANDROID: drivers: usb: gadget: 64-bit related type fixes")]
> Signed-off-by: Amit Pundir <amit.pundir@...aro.org>
> [astrachan: Folded the following changes into this patch:
>             9d5891d516e2 ("ANDROID: usb: gadget: f_accessory: Add ACCESSORY_SET_AUDIO_MODE control request and ioctl")
>             dc66cfce9622 ("ANDROID: usb: gadget: f_accessory: Add support for HID input devices")
>             5f1ac9c2871b ("ANDROID: usb: gadget: f_accessory: move userspace interface to uapi")
>             9a6241722cd8 ("ANDROID: usb: gadget: f_accessory: Enabled Zero Length Packet (ZLP) for acc_write")
>             31a0ecd5a825 ("ANDROID: usb: gadget: f_accessory: check for accessory device before disconnecting HIDs")
>             580721fa6cbc ("ANDROID: usb: gadget: f_accessory: Migrate to USB_FUNCTION API")
>             7f407172fb28 ("ANDROID: usb: gadget: f_accessory: Fix for UsbAccessory clean unbind.")
>             ebc98ac5a22f ("ANDROID: usb: gadget: f_accessory: fix false disconnect due to a signal sent to the reading process")
>             71c6dc5ffdab ("ANDROID: usb: gadget: f_accessory: assign no-op request complete callbacks")
>             675047ee68e9 ("ANDROID: usb: gadget: f_accessory: Move gadget functions code")
>             b2bedaa5c7df ("CHROMIUM: usb: gadget: f_accessory: add .raw_request callback")]

Those commit ids mean nothing to the linux kernel tree, right?

Please fix up.

greg k-h