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Graeme
Guest
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 Posted:
Sun Dec 19, 2004 3:00 am Post subject:
PS2 keyboards |
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Apart from setting/re-setting of the num, caps and scroll lock LEDs, what
other commands are sent from the host to a keyboard? |
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Gerard Bok
Guest
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| Posted:
Sun Dec 19, 2004 6:38 pm Post subject:
Re: PS2 keyboards |
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On Sat, 18 Dec 2004 22:00:26 -0000, "Graeme"
<graeme_dontreplyhere@hotmail.com> wrote:
| Quote: | Apart from setting/re-setting of the num, caps and scroll lock LEDs, what
other commands are sent from the host to a keyboard?
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Amongst others: typematic delay and typematic rate, I guess :-)
--
Kind regards,
Gerard Bok |
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Graeme
Guest
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| Posted:
Mon Dec 20, 2004 2:03 am Post subject:
Re: PS2 keyboards |
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"Gerard Bok" <bok118@zonnet.nl> wrote in message
news:41c58411.9789411@News.Individual.NET...
| Quote: | On Sat, 18 Dec 2004 22:00:26 -0000, "Graeme"
graeme_dontreplyhere@hotmail.com> wrote:
Apart from setting/re-setting of the num, caps and scroll lock LEDs, what
other commands are sent from the host to a keyboard?
Amongst others: typematic delay and typematic rate, I guess :-)
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Do you know of a list that shows them all? I've found a few lists that say
'here are some of the common commands'. |
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Joe Morris
Guest
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| Posted:
Mon Dec 20, 2004 1:42 pm Post subject:
Re: PS2 keyboards |
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"Graeme" <graeme_dontreplyhere@hotmail.com> writes:
| Quote: | Apart from setting/re-setting of the num, caps and scroll lock LEDs, what
other commands are sent from the host to a keyboard?
|
Commands from the system to the keyboard:
ED Set/Reset status indicators (CapsLock, NumLock, ScrolLock in low bits)
EE Echo
EF Invalid command
F0 Select alternate scan codes
F1 Invalid command
F2 Read ID
F3 Set typamatic rate/delay
F4 Enable
F5 Default disable
F6 Set default
F7 Set all keys - Typematic
F8 - Make/Break
F9 - Make
FA - Typematic/Make/Break
FB Set key type - Typematic
FC - Make/Break
FD - Make
FE Resend
FF Reset
Commands sent from the keyboard to the host:
00 Key detection error/overrun (code sets 2 or 3)
83AB Keyboard ID
AA Basic Assurance Test (BAT) completion code
FC BAT failure code
EE Echo
FA Acknowledge (ACK)
FE Resend
FF Key detection error/overrun (code set 1)
Source: an old PS/2 tech reference manual that for some reason is
still in my bookcase...
Joe Morris |
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Graeme
Guest
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| Posted:
Wed Dec 22, 2004 2:15 am Post subject:
Re: PS2 keyboards |
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"Joe Morris" <jcmorris@mitre.org> wrote in message
news:cq6kt0$abp$1@newslocal.mitre.org...
| Quote: | "Graeme" <graeme_dontreplyhere@hotmail.com> writes:
Apart from setting/re-setting of the num, caps and scroll lock LEDs, what
other commands are sent from the host to a keyboard?
Commands from the system to the keyboard:
ED Set/Reset status indicators (CapsLock, NumLock, ScrolLock in low bits)
EE Echo
EF Invalid command
F0 Select alternate scan codes
F1 Invalid command
F2 Read ID
F3 Set typamatic rate/delay
F4 Enable
F5 Default disable
F6 Set default
F7 Set all keys - Typematic
F8 - Make/Break
F9 - Make
FA - Typematic/Make/Break
FB Set key type - Typematic
FC - Make/Break
FD - Make
FE Resend
FF Reset
Commands sent from the keyboard to the host:
00 Key detection error/overrun (code sets 2 or 3)
83AB Keyboard ID
AA Basic Assurance Test (BAT) completion code
FC BAT failure code
EE Echo
FA Acknowledge (ACK)
FE Resend
FF Key detection error/overrun (code set 1)
Source: an old PS/2 tech reference manual that for some reason is
still in my bookcase...
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Thanks for taking the time to post that list.
It's certainly got more commands than any other list I've found. |
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