This version reuses an "old" scrollback buffer of the previous console
if memory allocation fails.
However, the issue of clearing the console using the 'clear_console'
commnad [1,2] is still unsolved. I'd prefer implementing it using a
ioctl() call but it's open for discussion ;)
[1] https://sour
Add a scrollback buffers for each VGA console. The benefit is that
the scrollback history is not flushed when switching between consoles
but is persistent.
The buffers are allocated on demand when a new console is opened.
Signed-off-by: Manuel Schölling
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drivers/video/console/Kconfig | 19
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