Re: [PATCH 0/4] auxdisplay: Add support for TM1637 7-segment display driver
From: Andy Shevchenko
Date: Tue Jan 13 2026 - 01:54:46 EST
On Tue, Jan 13, 2026 at 6:03 AM Siratul Islam <email@xxxxxxxx> 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@xxxxxxxxx/
?
--
With Best Regards,
Andy Shevchenko