So it seems like the K100 actually is communicating at max 4kHz:
Speed 0x02 - High speed (2.0)
Various endpoints with bInterval of 2:
bEndpointAddress 0x81 - Endpoint# = 1, Direction = IN
bmAttributes 0x03 - Transfer Type = Interrupt
wMaxPacketSize 0x0010 - 16 bytes
bInterval 0x02
bEndpointAddress 0x82 - Endpoint# = 2, Direction = IN
bmAttributes 0x03 - Transfer Type = Interrupt
wMaxPacketSize 0x0400 - 1024 bytes
bInterval 0x02
bEndpointAddress 0x83 - Endpoint# = 3, Direction = IN
bmAttributes 0x03 - Transfer Type = Interrupt
wMaxPacketSize 0x0040 - 64 bytes
bInterval 0x02 - 2 milliseconds
bEndpointAddress 0x01 - Endpoint# = 1, Direction = OUT
bmAttributes 0x03 - Transfer Type = Interrupt
wMaxPacketSize 0x0400 - 1024 bytes
bInterval 0x02
Corsair K100 4kHz polling
Re: Corsair K100 4kHz polling
Binterval 2 equal 500hz only
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Re: Corsair K100 4kHz polling
Correct me if I am wrong, but:
- For USB1, that meant 1000/2 = 500 Hz
- For USB2, that meant 8000/2 = 4000 Hz
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Re: Corsair K100 4kHz polling
you are absolutely right, I thought this full speed ....
Re: Corsair K100 4kHz polling
For a device connected at high speed each microframe is 1/8 ms.Chief Blur Buster wrote: ↑05 Dec 2020, 17:36Correct me if I am wrong, but:
- For USB1, that meant 1000/2 = 500 Hz
- For USB2, that meant 8000/2 = 4000 Hz
Formula and details can be found here:
https://docs.microsoft.com/en-us/window ... descriptor
So 2^(2-1) = 2
(2/8) ms => 4kHz
Re: Corsair K100 4kHz polling
Could someone test the corsair 8k hyperpolling k65 mini?
Re: Corsair K100 4kHz polling
Has anyone been able to test the corsair 8k Hz keyboard? Corsair k65 mini?