linux-kernel - Re: [PATCH 0/4] auxdisplay: Add support for TM1637 7-segment display driver

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Message-ID: <CAHp75VemUUq6jU3CB9P9O=8tSJhbruKkJw0T_LDTXXBo3gLDAg@mail.gmail.com>
Date: Tue, 13 Jan 2026 08:54:08 +0200
From: Andy Shevchenko <andy.shevchenko@...il.com>
To: Siratul Islam <email@...at.me>, Jean-François Lessard <jefflessard3@...il.com>
Cc: andy@...nel.org, geert@...ux-m68k.org, robh@...nel.org, krzk+dt@...nel.org, 
	conor+dt@...nel.org, linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH 0/4] auxdisplay: Add support for TM1637 7-segment display driver

On Tue, Jan 13, 2026 at 6:03 AM Siratul Islam <email@...at.me> wrote:
>
> This series adds a driver for the Titan Micro TM1637 7-segment display
> controller.
>
> The TM1637 uses a custom two-wire protocol (CLK/DIO) that resembles I2C
> but lacks a slave address, requiring a bit-banging implementation.
>
> The driver exposes standard sysfs attributes for 'message' (text) and
> 'brightness'. It handles standard ASCII-to-7-segment mapping using the
> kernel's map_to_7segment utility.
>
> Note on implementation:
> This driver is implemented as a standalone platform driver rather than
> using the auxiliary display 'linedisp' framework. The TM1637 protocol
> requires manual handling of the decimal point (merging it with the
> previous digit), which is difficult to achieve cleanly with the current
> linedisp character buffer abstraction.

Wait, what happens to
https://lore.kernel.org/lkml/20251121145911.176033-1-jefflessard3@gmail.com/
?

-- 
With Best Regards,
Andy Shevchenko