Minor build tweaks

[NiLuJe]

Mainly to make it build against older Kobo kernels, as that's what I use in my ToolChains ;).

Hid the g_serial stuff behind an ifdef/make arg, and made it somewhat portable ;).

[NiLuJe]

Other than that, I didn't even double-check the serial stuff since the raw tty mode worked out just fine for a quick'n dirty test ;).

And, yep, stuff appears to work out just fine (even my fancy ZSH prompt, or a curses UI like nano's). :+1:

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I didn't touch/test the KFMon script, but you'll probably want to get rid of the crash screen stuff (it currently depends on KOReader's fonts, so it won't work as-is anyway ;p) ;).

(I highly recommend keeping fbdepth to switch to 8bpp, though, as that'll help performance).

(Also not sure if the dropbear binary was imported on purpose?)

[NiLuJe]

Okay, I lied ;p. Cleaned up the KFMon startup script :).

[NiLuJe]

I had a PW2 plugged in, so I tried a Kindle build, for shit'n giggles ;).

It's basically as simple as using the right TC w/

diff --git a/Makefile b/Makefile
index 9d08cf9..91d1344 100644
--- a/Makefile
+++ b/Makefile
@@ -68,7 +68,7 @@ build/libfbink.a:
 build/libfbink_kobo.a:
        mkdir -p build
        make -C FBInk clean
-       make -C FBInk CROSS_TC=$(CROSS_TC) KOBO=true MINIMAL=true FONTS=true staticlib
+       make -C FBInk CROSS_TC=$(CROSS_TC) KINDLE=true MINIMAL=true FONTS=true staticlib
        cp FBInk/Release/libfbink.a build/libfbink_kobo.a

 build/fbdepth:

(We don't care about fbdepth on Kindle, they're all @ 8bpp (or 4bpp for really old ones).)

[llandsmeer]

Woah this is great, thanks for putting so much effort into this!! :smiley: It's really nice to see this working on different devices

And sorry for the kind of verbatim stealing of the koreader startup scripts. I got fed up with ptrace breaking on arm in unexpected ways.. (I got tracexec running in an arm emulator, but the kobo is still different apparently..) :/ The 8bpp creates indeed a nice speedup

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Thanks for telling me about printf("%m\n") :)

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As for dropbear, I hoped it would also be an SSH client .. which it was not. I tried multiple times to cross-compile a static dbclient (dropbear ssh client) but failed miserable. Do you maybe-maybe have one lying around which I could integrate here?

[llandsmeer]

// TODO: Making the font & size configurable might be nice ;).

As for that, I was thinking about creating a named pipe so any program can give commands to the terminal emulator. And then some method to allow images to be displayed on top of certain areas - you'd be able to run full jupyter notebooks with plotting and all from the terminal o.o

[llandsmeer]

Build works fine :+1:. The MINIMAL=true options seems to have decreased the binary size by 100Kb

[NiLuJe]

I do have a bundle 'o stuff centered around an SSH server ;).

(Actual binaries are around here. FYI, dropbear is built as a multi-call binary, like busybox, which means either run it via a symlink (e.g., dropbear -> dropbearmulti, which is how it's setup here), or pass the requested "app" as the first argument (dropbearmulti dropbear ...)).

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EDIT: Okay, just realized you said client :D. Weeeell, it also installs both dbclient and the OpenSSH suite ;).

[llandsmeer]

Great, works perfectly! Now I even have zsh and tmux :) And font size 2 is indeed a lot nicer