linux-kernel - Re: [PATCH v2] ufs: core: print capabilities in controller's sysfs node

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Message-ID: <3f96d798-e9bb-15d8-65b9-2383e112c654@acm.org>
Date:   Thu, 28 Jul 2022 16:23:16 -0700
From:   Bart Van Assche <bvanassche@....org>
To:     Daniil Lunev <dlunev@...omium.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Alim Akhtar <alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>,
        Bean Huo <beanhuo@...ron.com>,
        Daejun Park <daejun7.park@...sung.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Sohaib Mohamed <sohaib.amhmd@...il.com>,
        Stanley Chu <stanley.chu@...iatek.com>,
        linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org
Subject: Re: [PATCH v2] ufs: core: print capabilities in controller's sysfs
 node

On 7/28/22 16:05, Daniil Lunev wrote:
> +What:		/sys/bus/platform/drivers/ufshcd/*/caps
> +What:		/sys/bus/platform/devices/*.ufs/caps
> +Date:		July 2022
> +Contact:	Daniil Lunev <dlunev@...omium.org>
> +Description:	Read-only attribute. Enabled capabilities of the UFS driver. The
> +		enabled capabilities are determined by what is supported by the
> +		host controller and the UFS device.
> +		Format: 0x%08llx

This documentation is useless since the meaning of the individual bits 
has not been documented.

Thanks,

Bart.