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How to Increase USB Polling Rate to 1000Hz (usbport.sys) for Windows7? RRS feed

  • Question

  • Windows7 comes with default 125Hz USB polling rate ("usbport.sys") which is not enough, can someone tell me how to update "usbport.sys" file for increasing USB polling rate to 1000Hz?

    Friday, June 18, 2010 7:45 AM

All replies

  • Raghvendra1977 wrote:
    >
    >Windows7 comes with default 125Hz USB polling rate
     
    It most certainly does not.
     
    Now, apparently, there are parts of the HID stack that pack multiple
    packets per request, which has the effect of increasing latency on USB mice
    and keyboards. Loony gamers released patched versions of usbport.sys for
    other systems that changed that. Is that what you're after?
    --
    Tim Roberts, timr@probo.com
    Providenza & Boekelheide, Inc.
     

    Tim Roberts, DDK MVP
    Sunday, June 20, 2010 5:36 AM
  • Hi Tim Roberts,

    I am looking for some way to update "usbport.sys" file for achieving 1000Hz usb polling rate. If Loony gamers patched versions of "usbport.sys" will help in achieving 1000Hz usb polling rate then I will be happy, let me try with Loony gamers patched versions of "usbport.sys". Can you please tell me from where can I download the Loony gamers patched versions of usbport.sys?

    Thanks,

    Raghvendra.

     

    Monday, June 21, 2010 3:47 AM
  • Raghvendra1977 wrote:
    >
    >I am looking for some way to update "usbport.sys" file for achieving 1000Hz
    >usb polling rate.
     
    USB already "polls" much faster than that. The issue that is being
    addressed by these patched versions of usbport.sys is strictly related to
    latency in accessing USB HID keyboards and mice. If you are not
    SPECIFICALLY concerned with HID devices, then you are wasting your time.
     
    As always, if you would describe the PROBLEM you are trying to solve,
    instead of taking random stabs at supposed solutions, some of us can offer
    you practical suggestions at a REAL solution.
    --
    Tim Roberts, timr@probo.com
    Providenza & Boekelheide, Inc.
     

    Tim Roberts, DDK MVP
    Tuesday, June 22, 2010 3:27 AM
  • Maybe I'm one of those loony gamers. However, one of the problems I am having is with an increased amount of latency coming from my arcade joystick (a Madcatz Super Street Fighter IV joystick, Tournament Edition). In Windows XP, installing a USBPORT.SYS with the so-called USB polling rate set to 1000hz definitely helped and made it run much faster.

    Unfortunately, I am unsure whether this is the same problem Windows 7 seems to be experiencing. I am looking for a similar patch as the guy above that will eliminate the latency in my joystick so that I can resume playing fighting games such as Street Fighter IV on Steam without the horrendous input lag (latency). Any ideas?

    Tuesday, July 27, 2010 12:52 AM