Ethan Nelson-Moore e38b27199e console: mdacon: remove this obsolete driver ... The mdacon driver supports using ISA MDA or Hercules-compatible display adapters as a secondary text console. This was commonly used in the 1990s and earlier for debugging software which took over the primary display. It is highly unlikely anyone is doing so nowadays because serial consoles and much better methods of debugging exist. The driver is not enabled by any defconfig, nor any of the dozens of distro configs collected at [1]. It has been relegated to VTs 13-16 since commit 0b9cf3aa6b ("mdacon messing up default vc's - set default to vc13-16 again") in Linux 2.6.27 (and before Linux 2.5.53 - see the link in the message of the above commit). The change in 2.6.27 was done because it was incorrectly detecting non-MDA adapters as MDA and taking over all VTs, rendering them unusable. Furthermore, vgacon supports using MDA/Hercules-compatible adapters as the primary text console, so any systems with only one of these adapters were already using vgacon and will not experience any loss in functionality from the removal of this driver. Given all of these factors, the mdacon driver is likely entirely unused. Remove it. [1] f0bee86a13 Signed-off-by: Ethan Nelson-Moore <enelsonmoore@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>		2026-05-20 20:23:32 +02:00
..
dummycon.c	dummycon: Trigger redraw when switching consoles with deferred takeover	2025-05-26 09:35:34 +02:00
Kconfig	console: mdacon: remove this obsolete driver	2026-05-20 20:23:32 +02:00
Makefile	console: mdacon: remove this obsolete driver	2026-05-20 20:23:32 +02:00
newport_con.c	lib/fonts: Create font_data_t from struct console_font with font_data_import()	2026-03-09 15:47:21 +01:00
sticon.c	Convert 'alloc_obj' family to use the new default GFP_KERNEL argument	2026-02-21 17:09:51 -08:00
vgacon.c	Revert "vgacon: Add check for vc_origin address range in vgacon_scroll()"	2025-08-02 21:47:33 +02:00