SchOS/include
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Nexoniarz 91a6d440d6 tty: Alt+1..6 switches terminals, and AltGr is left alone
Alt+F1..F6 was wrong in three separate ways, and the third is the one that
matters most here.

  Alt+F4            the host window manager closes the QEMU window
  Alt+F2            GNOME and KDE open a run dialog
  Ctrl+Alt+F1..F6   the host switches its *own* virtual terminals
  AltGr+anything    Polish diacritics -- a c e l n o s x z with their marks --
                    and on some setups AltGr is delivered as Ctrl+Alt
  Ctrl+Shift+key    widely bound inside applications
  Scroll Lock       not present on many keyboards

Alt+1..6 survives all of it: the number row, so no function key is involved,
and left Alt, so AltGr is untouched.

Right Alt is tracked as its own modifier bit now. It used to share ALT, which
is harmless for typing -- neither is used to look up a character -- and wrong
for chords, because it made AltGr indistinguishable from Alt.

And the test is an equality rather than a mask:

    if ((shift & (CTL | SHIFT | ALT | RALT)) == ALT && ...)

`shift & ALT` fired on Ctrl+Alt+1 and AltGr+1 as well, so a chord aimed at the
host -- or an ordinary Polish keystroke -- would have switched terminals
behind your back. That was a real bug in what shipped yesterday.

Verified with QEMU's sendkey, comparing screendump hashes:

    start (tty1)   86cee2284878
    Ctrl+Alt+2     86cee2284878   identical -- did not fire
    AltGr+2        86cee2284878   identical -- did not fire
    Alt+2          114562804a78   switched
    Alt+1          86cee2284878   back, pixel-identical to the start

schfs-check passes.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VQ7Qx8E1q1M1bbCq8QLHS2
2026-09-13 12:56:34 +02:00
..
asm.h Initial commit: Schunix as it stands before the SchOS rename 2026-08-09 13:47:01 +02:00
buf.h Raise the disk ceiling: 64-bit blocks, no FSSIZE panic, LBA48 2026-08-10 18:50:31 +02:00
config_sinit.h Initial commit: Schunix as it stands before the SchOS rename 2026-08-09 13:47:01 +02:00
date.h Initial commit: Schunix as it stands before the SchOS rename 2026-08-09 13:47:01 +02:00
defs.h tty: six virtual terminals, and the plumbing that makes them terminals 2026-09-13 00:08:00 +02:00
device.h docs: four directories, and a rule for when a thing leaves the roadmap 2026-09-12 17:13:35 +02:00
display.h Initial commit: Schunix as it stands before the SchOS rename 2026-08-09 13:47:01 +02:00
dma.h Initial commit: Schunix as it stands before the SchOS rename 2026-08-09 13:47:01 +02:00
elf.h Initial commit: Schunix as it stands before the SchOS rename 2026-08-09 13:47:01 +02:00
errno.h schfs: a format version policy, and refusing is not falling back 2026-09-12 17:13:59 +02:00
fb.h Rename Schunix to SchOS; the kernel becomes SchIFT 2026-08-09 14:09:59 +02:00
fcntl.h Rename Schunix to SchOS; the kernel becomes SchIFT 2026-08-09 14:09:59 +02:00
file.h fs: devtmpfs, so /dev is generated rather than written to a disk 2026-09-12 20:18:30 +02:00
font.h Rename Schunix to SchOS; the kernel becomes SchIFT 2026-08-09 14:09:59 +02:00
fs.h init survives stray signals; commands are 4-34x faster 2026-08-09 15:54:05 +02:00
fsstat.h fs: timestamps come from the clock, and /proc/fsstat says how full the tables are 2026-09-12 17:14:14 +02:00
gfx.h tty: six virtual terminals, and the plumbing that makes them terminals 2026-09-13 00:08:00 +02:00
input.h usb-hid: bind an absolute pointer, and plumb EV_ABS through 2026-08-10 18:27:01 +02:00
irq.h Initial commit: Schunix as it stands before the SchOS rename 2026-08-09 13:47:01 +02:00
kbd.h tty: Alt+1..6 switches terminals, and AltGr is left alone 2026-09-13 12:56:34 +02:00
logo.h docs: a branding folder, and the three marks are not interchangeable 2026-09-12 18:19:09 +02:00
memlayout.h Free every usable memory region, not one contiguous run 2026-08-09 20:03:51 +02:00
mmu.h Initial commit: Schunix as it stands before the SchOS rename 2026-08-09 13:47:01 +02:00
mp.h Initial commit: Schunix as it stands before the SchOS rename 2026-08-09 13:47:01 +02:00
netdev.h net: a frame wakes the stack, instead of waiting for the clock 2026-09-12 17:23:46 +02:00
param.h kernel: processes have an environment now, and zsh is the shell 2026-09-12 23:26:50 +02:00
pci.h net: a network *class*, so the stack stops knowing what an e1000 is 2026-08-15 16:42:34 +02:00
posix.h tty: six virtual terminals, and the plumbing that makes them terminals 2026-09-13 00:08:00 +02:00
proc.h tty: six virtual terminals, and the plumbing that makes them terminals 2026-09-13 00:08:00 +02:00
qr.h docs: four directories, and a rule for when a thing leaves the roadmap 2026-09-12 17:13:35 +02:00
schboot.h boot/uefi: the memory map the kernel gets is the one the firmware agreed to 2026-08-11 11:42:22 +02:00
schfs.h schfs: records at arbitrary offsets are packed, and the compiler is told 2026-09-12 17:56:36 +02:00
sleeplock.h Initial commit: Schunix as it stands before the SchOS rename 2026-08-09 13:47:01 +02:00
socket.h net: AF_NETLINK, so getifaddrs() works for everything and not just one program 2026-09-12 19:23:34 +02:00
spinlock.h Initial commit: Schunix as it stands before the SchOS rename 2026-08-09 13:47:01 +02:00
stat.h Initial commit: Schunix as it stands before the SchOS rename 2026-08-09 13:47:01 +02:00
syscall.h Initial commit: Schunix as it stands before the SchOS rename 2026-08-09 13:47:01 +02:00
text.h Initial commit: Schunix as it stands before the SchOS rename 2026-08-09 13:47:01 +02:00
theme.h gfx: the console and the crash screen stop drawing on a driver by name 2026-08-15 17:04:10 +02:00
traps.h Initial commit: Schunix as it stands before the SchOS rename 2026-08-09 13:47:01 +02:00
ttf.h Initial commit: Schunix as it stands before the SchOS rename 2026-08-09 13:47:01 +02:00
types.h Initial commit: Schunix as it stands before the SchOS rename 2026-08-09 13:47:01 +02:00
uaccess.h Rename Schunix to SchOS; the kernel becomes SchIFT 2026-08-09 14:09:59 +02:00
usb.h usb-hid: bind an absolute pointer, and plumb EV_ABS through 2026-08-10 18:27:01 +02:00
user.h kernel: processes have an environment now, and zsh is the shell 2026-09-12 23:26:50 +02:00
vt.h tty: Alt+1..6 switches terminals, and AltGr is left alone 2026-09-13 12:56:34 +02:00
x86.h schfs: the commit barrier, reflink, and attributes with an index over them 2026-08-15 16:02:02 +02:00