linux-kernel - 答复: [External Mail]Re: [PATCH v2 2/2] HID: input: report battery status changes immediately

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Message-ID: <53cecfd5c34c4f109d4ad1b5e4e7a955@xiaomi.com>
Date: Thu, 14 Aug 2025 09:30:14 +0000
From: 卢国宏 <luguohong@...omi.com>
To: Jiri Kosina <jikos@...nel.org>, José Expósito
	<jose.exposito89@...il.com>
CC: "bentiss@...nel.org" <bentiss@...nel.org>, "linux-input@...r.kernel.org"
	<linux-input@...r.kernel.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, Fei1 Jiang 蒋飞
	<jiangfei1@...omi.com>, "tkjos@...gle.com" <tkjos@...gle.com>
Subject: 答复: [External Mail]Re: [PATCH v2 2/2] HID: input: report battery status changes immediately

Hello, José and Jiri!
When will this HID patch be merged into the Linux mainline? We are looking forward to using this feature, so please help us push it forward! Thank you very much!

________________________________________
发件人: 卢国宏
发送时间: 2025年8月12日 8:44
收件人: Jiri Kosina; José Expósito
抄送: bentiss@...nel.org; linux-input@...r.kernel.org; linux-kernel@...r.kernel.org; Fei1 Jiang 蒋飞; 卢国宏
主题: 答复: [External Mail]Re: [PATCH v2 2/2] HID: input: report battery status changes immediately

Hello, Jiri!

Nowadays, there are more and more HID devices connected to Android and Linux devices. For example, we have already reached the third generation of controllers, a HID device. In each generation, we need to report the charging status of the controller, a HID device, to the Android phone. Only then can the phone know the charging status of the HID device. Based on this charging status, the phone can determine the PD fast charging logic and how to proceed. In addition to us, other mobile phone manufacturers, such as VIVO, have also made several generations of controllers. We also encountered this practical problem in the process of making the controller, so we raised this issue with you. Our solution is also based on the HID protocol. Thank you!

________________________________
发件人: Jiri Kosina <jikos@...nel.org>
发送时间: 2025年8月11日 19:48
收件人: José Expósito
抄送: bentiss@...nel.org; 卢国宏; linux-input@...r.kernel.org; linux-kernel@...r.kernel.org
主题: [External Mail]Re: [PATCH v2 2/2] HID: input: report battery status changes immediately

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On Wed, 6 Aug 2025, José Expósito wrote:

> When the battery status changes, report the change immediately to user
> space.

Could you please make the changelog a little bit more elaborative, i.e.
why is it needed, what user-visible behavior change/improvement it brings,
etc.

I know it's in the e-mail thread, but at least some summary should go also
to the commit itself.

Thanks,

--
Jiri Kosina
SUSE Labs

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