This is https://bugzilla.kernel.org/show_bug.cgi?id=60586 - I'm posting it here as directed by Greg Kroah-Hartman. -- usbhid's mousepoll parameter is setting all of the gaming mice I've tested to exactly 1/2 of the expected polling rate that I specify, but only if the gaming mice are using the ohci-hcd driver. To test polling rates, I use the evhz utility: http://web.archive.org/web/20060623094750/http://homepages.nildram.co.uk/~kial/evhz.c Here is an example using a Zowie EC1 eVo gaming mouse with usbhid.mousepoll=1: [ohci] >From dmesg: [ 9998.795207] usb 7-3: new full-speed USB device number 2 using ohci_hcd >From evhz: event3: latest hz = 500 (average hz = 500) event3: latest hz = 500 (average hz = 500) event3: latest hz = 500 (average hz = 500) event3: latest hz = 500 (average hz = 500) [ehci] >From dmesg: [10217.625617] usb 2-1.1: new full-speed USB device number 5 using ehci-pci >From evhz: event3: latest hz = 1000 (average hz = 1000) event3: latest hz = 1000 (average hz = 1000) event3: latest hz = 1000 (average hz = 1000) event3: latest hz = 1000 (average hz = 1000) My motherboard is an Asus Sabertooth 990FX/GEN3 R2.0, which uses the SB950 south bridge chip to provide USB. I've also tested a Gigabyte GA-990FXA-UD3 which uses the same south bridge chip and have the exact same problem. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
