Re: [PATCH v2 6/8] ABI: sysfs-bus-pci: add documentation for modalias

[Bjorn Helgaas <helgaas@kernel.org>]

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@kernel.org>

Acked-by: Bjorn Helgaas <bhelgaas@google.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@linuxfoundation.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@vger.kernel.org
> -- 
> 2.31.1
>