Mdthbs

Can Microsoft employees see my data in Azure?

Why apt asking to uninstall GIMP when installing ardour?

FPGA starts working after irrelevant changes, why?

When and why did the House rules change to permit an inquiry without a vote?

Will my familiar remember me when I re-summon it, or is it a new entity?

Can an Unconscious PC hear you?

Are ups & downs/peaks and valleys inherent in piano practice and performance?

Is the phrase “You are requested” polite or rude?

Why is the limit e and not 1?

Stare long enough and you will have found the answer

Do proteins interact through classical or quantum mechanics?

What's the safest shape for homemade hard-candy

What can I wear to avoid getting frisked and crotch searched by TSA at the airport?

How do the "save the bees" popular initiatives in Bavaria and Baden-Württemberg differ?

How to load GeoJSON data in OpenLayers?

Is using a photo reference for pose fair use?

What are the advantages to banks being located in the City of London (the Square Mile)?

Why do baby boomers have to sell 5% of their retirement accounts by the end of the year?

What does "away to insignificance" mean?

Does Turkey make the "structural steel frame" for the F-35 fighter?

Most optimal hallways with random gravity inside?

Compress .hex file for micro-controller

Is my translation correct?

In this scene from the novel, 'The Martian', by Andy Weir, how does Mark Watney store hydrogen made from water in the tank?

Does zapping TV (TeleVision) channels also give an “orthogonal feeling”? What is an “orthogonal feeling” on a Linux TTY (“TeleTYpewriter”)")?

What is the exact difference between a 'terminal', a 'shell', a 'tty' and a 'console'?Linux TTY ColoursHow Linux uses /dev/tty and /dev/tty0What does '?' represent under TTYWhat is the relation between UART and the tty?What does this stream of characters represent (when using unbuffer)?What exactly tty line discipline does with input from pty slave device?

.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{
margin-bottom:0;
}

-3

I stumbled again over this word orthogonal in a surprising context. I opened kernel/tty_io.c in Linux 0.01:

/*

 * 'tty_io.c' gives an orthogonal feeling to tty's, be they consoles

 * or rs-channels. It also implements echoing, cooked mode etc (well,

 * not currently, but ...)

 */

Yes it is old, and today's code has comments about heavy rearrangements. But this "orthogonal", in this context, what does it mean?

What layer does tty_io.c (ie. the use of the functions therein) add to simple consoles or RS-232 channels.

Does zapping TV channels also give an orthogonal feeling?

And if ortho-gonal (right-angled) means in respect to scrolling axis, then it means...what is the word?

---

In Linux 4.2 it is in drivers/tty/. Only slightly updated.

/*

 * 'tty_io.c' gives an orthogonal feeling to tty's, be they consoles

 * or rs-channels. It also implements echoing, cooked mode etc.

 *

 * Kill-line thanks to John T Kohl, who also corrected VMIN = VTIME = 0.

 *

 * Modified by Theodore Ts'o, 9/14/92, to dynamically allocate the

 * tty_struct and tty_queue structures.  Previously there was an array

 * of 256 tty_struct's which was statically allocated, and the

 * tty_queue structures were allocated at boot time.  Both are now

 * dynamically allocated only when the tty is open.

terminal kernel tty io terminology

share|improve this question

edited 43 mins ago

rastafile

asked 3 hours ago

rastafilerastafile

20266 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  This is a good Q! Already two anonymous downvotes. With three lines of Linus' enthusiastic comments three decades ago.
  
  – rastafile
  2 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  en.wikipedia.org/wiki/Orthogonality#Computer_science
  
  – pizdelect
  2 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @pizdelect ...and? That is another kind of orthogonality. TTY is not a programming languge. Me (and Linux source) are talking about a feeeeling, on a tty, something inherently lacking on channels and consoles. I showed I know my greek. Ortho=straight, right, .... Gonos=corner, angle True I didn't even check on wiki, I know it's ambiguous. But thanks a lot if you mean it as a first clue!
  
  – rastafile
  2 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  The thing itself is sound, but good modular etc. design is not at all TTY specific.
  
  – rastafile
  2 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  "class.c gives a object oriented feeling to variables, be it arrays or hashes" --- no it is not that kind of fake feeling.
  
  – rastafile
  1 hour ago
  

  
  
  
  

 | 
show 4 more comments

-3

I stumbled again over this word orthogonal in a surprising context. I opened kernel/tty_io.c in Linux 0.01:

/*

 * 'tty_io.c' gives an orthogonal feeling to tty's, be they consoles

 * or rs-channels. It also implements echoing, cooked mode etc (well,

 * not currently, but ...)

 */

Yes it is old, and today's code has comments about heavy rearrangements. But this "orthogonal", in this context, what does it mean?

What layer does tty_io.c (ie. the use of the functions therein) add to simple consoles or RS-232 channels.

Does zapping TV channels also give an orthogonal feeling?

And if ortho-gonal (right-angled) means in respect to scrolling axis, then it means...what is the word?

---

In Linux 4.2 it is in drivers/tty/. Only slightly updated.

/*

 * 'tty_io.c' gives an orthogonal feeling to tty's, be they consoles

 * or rs-channels. It also implements echoing, cooked mode etc.

 *

 * Kill-line thanks to John T Kohl, who also corrected VMIN = VTIME = 0.

 *

 * Modified by Theodore Ts'o, 9/14/92, to dynamically allocate the

 * tty_struct and tty_queue structures.  Previously there was an array

 * of 256 tty_struct's which was statically allocated, and the

 * tty_queue structures were allocated at boot time.  Both are now

 * dynamically allocated only when the tty is open.

terminal kernel tty io terminology

share|improve this question

edited 43 mins ago

rastafile

asked 3 hours ago

rastafilerastafile

20266 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  This is a good Q! Already two anonymous downvotes. With three lines of Linus' enthusiastic comments three decades ago.
  
  – rastafile
  2 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  en.wikipedia.org/wiki/Orthogonality#Computer_science
  
  – pizdelect
  2 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @pizdelect ...and? That is another kind of orthogonality. TTY is not a programming languge. Me (and Linux source) are talking about a feeeeling, on a tty, something inherently lacking on channels and consoles. I showed I know my greek. Ortho=straight, right, .... Gonos=corner, angle True I didn't even check on wiki, I know it's ambiguous. But thanks a lot if you mean it as a first clue!
  
  – rastafile
  2 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  The thing itself is sound, but good modular etc. design is not at all TTY specific.
  
  – rastafile
  2 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  "class.c gives a object oriented feeling to variables, be it arrays or hashes" --- no it is not that kind of fake feeling.
  
  – rastafile
  1 hour ago
  

  
  
  
  

 | 
show 4 more comments

I stumbled again over this word orthogonal in a surprising context. I opened kernel/tty_io.c in Linux 0.01:

/*

 * 'tty_io.c' gives an orthogonal feeling to tty's, be they consoles

 * or rs-channels. It also implements echoing, cooked mode etc (well,

 * not currently, but ...)

 */

Yes it is old, and today's code has comments about heavy rearrangements. But this "orthogonal", in this context, what does it mean?

What layer does tty_io.c (ie. the use of the functions therein) add to simple consoles or RS-232 channels.

Does zapping TV channels also give an orthogonal feeling?

And if ortho-gonal (right-angled) means in respect to scrolling axis, then it means...what is the word?

---

In Linux 4.2 it is in drivers/tty/. Only slightly updated.

/*

 * 'tty_io.c' gives an orthogonal feeling to tty's, be they consoles

 * or rs-channels. It also implements echoing, cooked mode etc.

 *

 * Kill-line thanks to John T Kohl, who also corrected VMIN = VTIME = 0.

 *

 * Modified by Theodore Ts'o, 9/14/92, to dynamically allocate the

 * tty_struct and tty_queue structures.  Previously there was an array

 * of 256 tty_struct's which was statically allocated, and the

 * tty_queue structures were allocated at boot time.  Both are now

 * dynamically allocated only when the tty is open.

terminal kernel tty io terminology

share|improve this question

edited 43 mins ago

rastafile

asked 3 hours ago

rastafilerastafile

20266 bronze badges

/*

 * 'tty_io.c' gives an orthogonal feeling to tty's, be they consoles

 * or rs-channels. It also implements echoing, cooked mode etc (well,

 * not currently, but ...)

 */

/*

 * 'tty_io.c' gives an orthogonal feeling to tty's, be they consoles

 * or rs-channels. It also implements echoing, cooked mode etc.

 *

 * Kill-line thanks to John T Kohl, who also corrected VMIN = VTIME = 0.

 *

 * Modified by Theodore Ts'o, 9/14/92, to dynamically allocate the

 * tty_struct and tty_queue structures.  Previously there was an array

 * of 256 tty_struct's which was statically allocated, and the

 * tty_queue structures were allocated at boot time.  Both are now

 * dynamically allocated only when the tty is open.

share|improve this question

edited 43 mins ago

rastafile

asked 3 hours ago

rastafilerastafile

20266 bronze badges

share|improve this question

edited 43 mins ago

rastafile

asked 3 hours ago

rastafilerastafile

20266 bronze badges

asked 3 hours ago

rastafilerastafile

20266 bronze badges

asked 3 hours ago

rastafilerastafile

20266 bronze badges