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geekhack Community => Keyboards => Topic started by: bettablue on Sat, 26 February 2011, 12:38:29

Title: Questions on PS2 connectors
Post by: bettablue on Sat, 26 February 2011, 12:38:29: I am really getting into these model M keyboards and have read multiple threads regarding adapting the PS2 to USB using converters and such. The question I have might seem kind of odd, but I was wondering if anyone has heard of as add-on card for a PC that would allow a PS2 connection. If so, where can I get one?
Title: Questions on PS2 connectors
Post by: bugfix on Sat, 26 February 2011, 12:48:37: Does it really have to be a card? (http://www.clickykeyboards.com/index.cfm/fa/items.main/parentcat/11298/subcatid/0/id/124184)
Title: Questions on PS2 connectors
Post by: sam113101 on Sat, 26 February 2011, 13:03:03: I don't think you'll find PS/2 cards that fit on PCI-E slots (because PS/2 is old and deprecated, as PCI is), and if your comp is recent, it probably has PCI-E slots instead of PCI. You probably want a PS/2 port to have full nkey rollover, as I don't see any other reason why you'd want a PS/2 port. Are you sure you really need it*?
Title: Questions on PS2 connectors
Post by: sam113101 on Sat, 26 February 2011, 13:17:51: I'd like to have 4 arms.
(http://www.arkeis.com/images/pokemonfactory/machamp.png)
I would be a piano god.

How is that girl going to find gloves to fit her hands*? Otherwise it has some benefits.
Title: Questions on PS2 connectors
Post by: bettablue on Sat, 26 February 2011, 16:04:12: 4 arms would be cool. You could use two keyboards at a time. Imagine touch typing on that set up.

Back to the original post; I was just curious about the availabiity. I know everything is going towards USB, but it would be nice to have that add on for older peripherals. Oh well, I guess that's why we have converters.
Title: Questions on PS2 connectors
Post by: bpiphany on Sat, 26 February 2011, 16:44:41: Actually i'm pretty sure it is 6 keys plus 8 modifiers.
Title: Questions on PS2 connectors
Post by: Cata1yst on Sat, 26 February 2011, 19:43:59: Quote from: ripster;301380
In recent news I did find someone who needs more than 6+4modifierKRO.

Trying to get into Guiness Book. You GO Babe! Link (http://www.straitstimes.com/BreakingNews/SEAsia/Story/STIStory_635485.html).
Show Image
(http://www.straitstimes.com/STI/STIMEDIA/image/20110216/ST_19135399.jpg)

Thats odd, because usually polydactyls do not have the use of the extra fingers.
Title: Questions on PS2 connectors
Post by: bpiphany on Sun, 27 February 2011, 04:56:06: The teensy usb_keyboard example is the only thing I have looked into but it specifies modifier bits like this

Code: [Select]
#define KEY_LEFT_CTRL 0x01 #define KEY_LEFT_SHIFT 0x02 #define KEY_LEFT_ALT 0x04 #define KEY_LEFT_GUI 0x08 #define KEY_RIGHT_CTRL 0x10 #define KEY_RIGHT_SHIFT 0x20 #define KEY_RIGHT_ALT 0x40 #define KEY_RIGHT_GUI 0x80
Testing my majestouch in ubuntu's layout displayer it differentiates between all left and right modifier keys. On top of that 6 other keys registers at the same time. I would guess most keyboards work like this, otherwise it would be hard to use for example "right alt" as "alt gr". This also means that remapping "caps lock" to "ctrl" in software doesn't make it a real modifier key, it then falls under the 6 "normal" keys and can be knocked out of the HID packet if more than 5 other "normal" keys are pressed in addition.
Title: Questions on PS2 connectors
Post by: woody on Sun, 27 February 2011, 05:29:48: Quote from: PrinsValium;301662
Testing my majestouch in ubuntu's layout displayer it differentiates between all left and right modifier keys. On top of that 6 other keys registers at the same time. I would guess most keyboards work like this, otherwise it would be hard to use for example "right alt" as "alt gr". This also means that remapping "caps lock" to "ctrl" in software doesn't make it a real modifier key, it then falls under the 6 "normal" keys and can be knocked out of the HID packet if more than 5 other "normal" keys are pressed in addition.

Indeed.