Hello Ingo,

On Tue, Apr 29, 2025 at 09:14:30PM +0200, Ingo Schwarze wrote:
> If someone can tell me about a way to type in arbitrary bytes -
> in particular bytes > 0x7f - into xterm(1) or wscons(4), that
> would be appreciated to make manual testing easier.

In case I understand what you're asking correctly, in xterm(1) you can
do something like the following, for some reason it doesn't work well
for UTF-8 start bytes but it seems to work for continuation bytes.
First edit ~/.Xmodmap:

  ! ~/.Xmodmap
  !keycode  67 = F1 F1 F1 F1 F1 F1 XF86Switch_VT_1 F1 F1 XF86Switch_VT_1
  !keycode  68 = F2 F2 F2 F2 F2 F2 XF86Switch_VT_2 F2 F2 XF86Switch_VT_2
  keycode  67 = 0x82
  keycode  68 = 0xac

Then run:

  $ xmodmap ~/.Xmodmap

In my keyboard, with the example above, F1 will print 0x82 and F2 0xac
(I put also the original keycode setting in the file to be able to reset
those keys after doing the test.)  To select which key you prefer to
use:

  $ xmodmap -pke



-- 
Walter