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Message-ID: <20210914185823.GA1444822@bjorn-Precision-5520>
Date: Tue, 14 Sep 2021 13:58:23 -0500
From: Bjorn Helgaas <helgaas@...nel.org>
To: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Linux Doc Mailing List <linux-doc@...r.kernel.org>,
Jonathan Corbet <corbet@....net>,
Amey Narkhede <ameynarkhede03@...il.com>,
Bjorn Helgaas <bhelgaas@...gle.com>,
Carlos Bilbao <bilbao@...edu>,
Leon Romanovsky <leon@...nel.org>,
Maximilian Luz <luzmaximilian@...il.com>,
Niklas Schnelle <schnelle@...ux.ibm.com>,
Suzuki K Poulose <suzuki.poulose@....com>,
Tom Rix <trix@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 6/8] ABI: sysfs-bus-pci: add documentation for modalias
On Tue, Sep 14, 2021 at 04:55:19PM +0200, Mauro Carvalho Chehab wrote:
> Even being available since 2005, there's no documentation for
> modalias.
>
> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Acked-by: Bjorn Helgaas <bhelgaas@...gle.com>
> ---
> Documentation/ABI/testing/sysfs-bus-pci | 17 +++++++++++++++++
> 1 file changed, 17 insertions(+)
>
> diff --git a/Documentation/ABI/testing/sysfs-bus-pci b/Documentation/ABI/testing/sysfs-bus-pci
> index 191cbe9ae5ed..1da4c8db3a9e 100644
> --- a/Documentation/ABI/testing/sysfs-bus-pci
> +++ b/Documentation/ABI/testing/sysfs-bus-pci
> @@ -187,6 +187,23 @@ Description:
> The symbolic link points to the PCI device sysfs entry of the
> Physical Function this device associates with.
>
> +What: /sys/bus/pci/devices/.../modalias
> +Date: May 2005
> +Contact: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> +Description:
> + This attribute indicates the PCI ID of the device object.
> +
> + That is in the format:
> + pci:vXXXXXXXXdXXXXXXXXsvXXXXXXXXsdXXXXXXXXbcXXscXXiXX,
> + where:
> + - vXXXXXXXX contains the vendor ID;
> + - dXXXXXXXX contains the device ID;
> + - svXXXXXXXX contains the sub-vendor ID;
> + - sdXXXXXXXX contains the subsystem device ID;
> + - bcXX contains the device class;
> + - scXX contains the device subclass;
> + - iXX contains the device class programming interface.
> +
> What: /sys/bus/pci/slots/.../module
> Date: June 2009
> Contact: linux-pci@...r.kernel.org
> --
> 2.31.1
>
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