From: "Philippe Mathieu-Daudé" <philmd@linaro.org>
To: Dmitriy Sharikhin <d.sharikhin@yadro.com>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>
Cc: Igor Kononenko <i.kononenko@yadro.com>,
"Alexander A. Filippov" <a.filippov@yadro.com>,
Alexander Amelkin <a.amelkin@yadro.com>
Subject: Re: [PATCH v3] hw: gpio: introduce pcf8574 driver
Date: Tue, 12 Mar 2024 09:16:10 +0100 [thread overview]
Message-ID: <e3c7610b-8834-426b-bf54-73e850b3586f@linaro.org> (raw)
In-Reply-To: <f1552d822276e878d84c01eba2cf2c7c9ebdde00.camel@yadro.com>
On 11/3/24 10:58, Dmitriy Sharikhin wrote:
> NXP PCF8574 and compatible ICs are simple I2C GPIO expanders.
> PCF8574 incorporates quasi-bidirectional IO, and simple
> communication protocol, when IO read is I2C byte read, and
> IO write is I2C byte write. User can think of it as
> open-drain port, when line high state is input and line low
> state is output.
>
> Signed-off-by: Dmitrii Sharikhin <d.sharikhin@yadro.com>
> ---
> MAINTAINERS | 6 ++
> hw/gpio/Kconfig | 4 +
> hw/gpio/meson.build | 1 +
> hw/gpio/pcf8574.c | 162 ++++++++++++++++++++++++++++++++++++++
> include/hw/gpio/pcf8574.h | 15 ++++
> 5 files changed, 188 insertions(+)
> create mode 100644 hw/gpio/pcf8574.c
> create mode 100644 include/hw/gpio/pcf8574.h
Patch queued, thanks!
prev parent reply other threads:[~2024-03-12 8:16 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-11 9:58 [PATCH v3] hw: gpio: introduce pcf8574 driver Dmitriy Sharikhin
2024-03-11 12:03 ` Philippe Mathieu-Daudé
2024-03-12 8:16 ` Philippe Mathieu-Daudé [this message]
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