From: Alexey Gladkov <legion@kernel.org>
To: LKML <linux-kernel@vger.kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jirislaby@kernel.org>
Cc: linux-api@vger.kernel.org
Subject: [RFC PATCH v2 0/5] VT: Add ability to get font requirements
Date: Mon, 26 Feb 2024 16:21:09 +0100 [thread overview]
Message-ID: <cover.1708960303.git.legion@kernel.org> (raw)
In-Reply-To: <cover.1708011391.git.legion@kernel.org>
We now have KD_FONT_OP_SET_TALL, but in fact such large fonts cannot be
loaded. No console driver supports tall fonts. Unfortunately, userspace
cannot distinguish the lack of support in the driver from errors in the
font itself. In all cases, EINVAL will be returned.
In order not to hack the KDFONTOP interface, I suggest adding a new ioctl to
obtain information about the capabilities of the console driver.
This is the second version of the patch with the fixes pointed out by Jiri
Slaby.
Previous version: https://lore.kernel.org/all/cover.1708011391.git.legion@kernel.org/
---
Alexey Gladkov (5):
VT: Add KD_FONT_OP_GET_INFO operation
newport_con: Allow to get max font width and height
sticon: Allow to get max font width and height
vgacon: Allow to get max font width and height
fbcon: Allow to get max font width and height
drivers/tty/vt/vt.c | 24 ++++++++++++++++++++++++
drivers/tty/vt/vt_ioctl.c | 12 ++++++++++++
drivers/video/console/newport_con.c | 21 +++++++++++++++++----
drivers/video/console/sticon.c | 25 +++++++++++++++++++++++--
drivers/video/console/vgacon.c | 21 ++++++++++++++++++++-
drivers/video/fbdev/core/fbcon.c | 22 +++++++++++++++++++++-
include/linux/console.h | 2 ++
include/linux/vt_kern.h | 1 +
include/uapi/linux/kd.h | 13 ++++++++++++-
9 files changed, 132 insertions(+), 9 deletions(-)
--
2.44.0
next parent reply other threads:[~2024-02-26 15:21 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1708011391.git.legion@kernel.org>
2024-02-26 15:21 ` Alexey Gladkov [this message]
2024-02-26 15:21 ` [RFC PATCH v2 1/5] VT: Add KD_FONT_OP_GET_INFO operation Alexey Gladkov
2024-02-26 15:21 ` [RFC PATCH v2 2/5] newport_con: Allow to get max font width and height Alexey Gladkov
2024-02-26 15:21 ` [RFC PATCH v2 3/5] sticon: " Alexey Gladkov
2024-02-27 5:52 ` Greg Kroah-Hartman
2024-02-27 14:06 ` Alexey Gladkov
2024-02-26 15:21 ` [RFC PATCH v2 4/5] vgacon: " Alexey Gladkov
2024-02-26 15:21 ` [RFC PATCH v2 5/5] fbcon: " Alexey Gladkov
2024-03-12 14:23 ` [PATCH v3 0/2] VT: Add ability to get font requirements legion
2024-03-12 14:23 ` [PATCH v3 1/2] VT: Add KDFONTINFO ioctl legion
2024-03-15 9:15 ` Helge Deller
2024-03-12 14:23 ` [PATCH v3 2/2] VT: Allow to get max font width and height legion
2024-03-13 17:40 ` Oleg Bulatov
2024-04-02 11:09 ` Jiri Slaby
2024-03-15 9:16 ` Helge Deller
2024-04-02 10:32 ` [RESEND PATCH v3 0/2] VT: Add ability to get font requirements Alexey Gladkov
2024-04-02 10:32 ` [RESEND PATCH v3 1/2] VT: Add KDFONTINFO ioctl Alexey Gladkov
2024-04-02 11:02 ` Jiri Slaby
2024-04-02 13:19 ` Alexey Gladkov
2024-04-03 5:27 ` Jiri Slaby
2024-04-10 16:29 ` Alexey Gladkov
2024-04-10 17:11 ` Greg Kroah-Hartman
2024-04-02 17:50 ` [PATCH v4 0/3] VT: Add ability to get font requirements Alexey Gladkov
2024-04-02 17:50 ` [PATCH v4 1/3] VT: Use macros to define ioctls Alexey Gladkov
2024-04-02 17:50 ` [PATCH v4 2/3] VT: Add KDFONTINFO ioctl Alexey Gladkov
2024-04-03 4:55 ` Greg Kroah-Hartman
2024-04-03 5:05 ` Jiri Slaby
2024-04-10 16:36 ` Alexey Gladkov
2024-04-11 3:53 ` Jiri Slaby
2024-04-02 17:50 ` [PATCH v4 3/3] VT: Allow to get max font width and height Alexey Gladkov
2024-04-17 17:37 ` [PATCH v5 0/3] VT: Add ability to get font requirements Alexey Gladkov
2024-04-17 17:37 ` [PATCH v5 1/3] VT: Use macros to define ioctls Alexey Gladkov
2024-04-18 6:18 ` Greg Kroah-Hartman
2024-04-17 17:37 ` [PATCH v5 2/3] VT: Add KDFONTINFO ioctl Alexey Gladkov
2024-04-17 19:31 ` Helge Deller
2024-04-18 10:45 ` Alexey Gladkov
2024-04-25 10:33 ` Helge Deller
2024-04-25 11:06 ` Alexey Gladkov
2024-04-25 11:35 ` Helge Deller
2024-04-18 6:18 ` Greg Kroah-Hartman
2024-04-18 10:27 ` Alexey Gladkov
2024-04-17 17:37 ` [PATCH v5 3/3] VT: Allow to get max font width and height Alexey Gladkov
2024-04-02 10:32 ` [RESEND PATCH v3 2/2] " Alexey Gladkov
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