From: Pavel Machek <pavel@ucw.cz>
To: "Sami Kyöstilä" <skyostil@chromium.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
dtor@chromium.org, evanbenn@chromium.org, arnd@arndb.de,
gregkh@linuxfoundation.org
Subject: Re: [PATCH 1/2] drivers/misc: add a driver for HPS
Date: Fri, 18 Feb 2022 18:20:19 +0100 [thread overview]
Message-ID: <20220218172019.GA3039@duo.ucw.cz> (raw)
In-Reply-To: <20220127083545.1020423-2-skyostil@chromium.org>
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Hi!
> +config HPS_I2C
> + tristate "ChromeOS HPS device support"
> + depends on HID && I2C && PM
> + help
> + Say Y here if you want to enable support for the ChromeOS
> + anti-snooping sensor (HPS), attached via I2C. The driver supports a
> + sensor connected to the I2C bus and exposes it as a character device.
> + To save power, the sensor is automatically powered down when no
> + clients are accessing it.
> +
We don't need to know about power management here; but it would be
good to have explanation what anti-snooping sensor actually does. Is
it camera detecting user or what?
Best regards,
Pavel
--
http://www.livejournal.com/~pavelmachek
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next prev parent reply other threads:[~2022-02-18 17:20 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-27 8:35 [PATCH 0/2] Add a driver for the ChromeOS snooping protection sensor (HPS) Sami Kyöstilä
2022-01-27 8:35 ` [PATCH 1/2] drivers/misc: add a driver for HPS Sami Kyöstilä
2022-01-27 9:40 ` Greg KH
2022-01-28 7:41 ` Sami Kyostila
2022-01-28 9:36 ` Greg KH
2022-02-18 17:20 ` Pavel Machek [this message]
2022-01-27 8:35 ` [PATCH 2/2] drivers/misc: add transfer ioctl " Sami Kyöstilä
2022-01-27 9:41 ` Greg KH
2022-01-28 7:42 ` Sami Kyostila
2022-01-28 9:36 ` Greg KH
2022-01-31 8:23 ` Sami Kyostila
2022-01-31 12:51 ` Arnd Bergmann
2022-01-28 9:47 ` Arnd Bergmann
2022-01-27 22:39 ` Randy Dunlap
2022-01-28 7:42 ` Sami Kyostila
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