What is the maximum allowed number of TTY, is it defined anywhere in kernel headers?

Question

What's the maximum allowed number of TTYs?

I found pty.max, but is there anything similar for TTYs? Or is it defined as a fixed value in kernel headers, I couldn't find that

score 7 · Accepted Answer · 2013-12-18T07:27:20.170

7

In case you're referring Linux virtual consoles as TTYs, their number by default is 64 and this is defined in include/uapi/linux/vt.h inside the Linux kernel source tree. The thing you're looking for is NR_CONSOLES.

edited Dec 18 '13 at 07:27

answered Dec 18 '13 at 06:46

Does it apply to TTYs? pty is configurable – daisy Dec 18 '13 at 06:47
Thanks Sami, I still want to know where the 64 is defined – daisy Dec 18 '13 at 06:52
@RubanSavvy please read the greyed text in the textarea, it is there before you start typing. Voting is good, commenting on that you have done so superfluous. – Anthon Dec 18 '13 at 07:22

What is the maximum allowed number of TTY, is it defined anywhere in kernel headers?

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