linux-kernel - Re: [PATCH v8 char-misc-next 5/5] misc: microchip: pci1xxxx: Add documentation for sysfs bin attributes

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Date:   Wed, 29 Mar 2023 12:03:06 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     "Vaibhaav Ram T.L" <vaibhaavram.tl@...rochip.com>
Cc:     arnd@...db.de, linux-gpio@...r.kernel.org,
        linux-kernel@...r.kernel.org, kumaravel.thiagarajan@...rochip.com,
        tharunkumar.pasumarthi@...rochip.com, UNGLinuxDriver@...rochip.com
Subject: Re: [PATCH v8 char-misc-next 5/5] misc: microchip: pci1xxxx: Add
 documentation for sysfs bin attributes

On Tue, Mar 28, 2023 at 08:10:08PM +0530, Vaibhaav Ram T.L wrote:
> From: Kumaravel Thiagarajan <kumaravel.thiagarajan@...rochip.com>
> 
> This patch contains Documentation for Microchip PCI1XXXX OTP/EEPROM sysfs
> bin attributes.
> 
> Co-developed-by: Tharun Kumar P <tharunkumar.pasumarthi@...rochip.com>
> Signed-off-by: Tharun Kumar P <tharunkumar.pasumarthi@...rochip.com>
> Signed-off-by: Kumaravel Thiagarajan <kumaravel.thiagarajan@...rochip.com>
> Signed-off-by: Vaibhaav Ram T.L <vaibhaavram.tl@...rochip.com>
> ---
>  Documentation/ABI/stable/sysfs-devices-mchp-pci1xxxx | 11 +++++++++++
>  1 file changed, 11 insertions(+)
>  create mode 100644 Documentation/ABI/stable/sysfs-devices-mchp-pci1xxxx
> 
> diff --git a/Documentation/ABI/stable/sysfs-devices-mchp-pci1xxxx b/Documentation/ABI/stable/sysfs-devices-mchp-pci1xxxx
> new file mode 100644
> index 000000000000..0913c7b01990
> --- /dev/null
> +++ b/Documentation/ABI/stable/sysfs-devices-mchp-pci1xxxx
> @@ -0,0 +1,11 @@
> +What:		/sys/devices/pciXXXX:XX/XXXX:XX:XX.X/../mchp_pci1xxxx_gp.gp_otp_e2p.n/pci1xxxx_eeprom
> +Date:		March 27, 2023
> +KernelVersion:	6.3
> +Contact:	Vaibhaav Ram T.L <vaibhaavram.tl@...rochip.com>
> +Description:	This bin file is used for writing into and reading from Microchip PCI1XXXX EEPROM

"bin"?  Userspace doesn't know what that means.

But again, why can't you use the eeprom api instead?

thanks,

greg k-h