On Tue, Nov 5, 2013 at 9:57 AM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: > On Mon, 4 Nov 2013, Cliff Brake wrote: > >> >> I assume interrupts are disabled during both ohci_irq() and ehci_irq(). > > Currently they are. This will change somewhat in the not-too-distant > future. Are there any patches available yet for this work? >> Short term we'll try to force 64-byte packets on the EHCI system. >> Long term it would be nice if this work did not happen in a irq >> handler, although this is clearly an abuse of the HID protocol. > > You might be better off writing a special-purpose userspace driver, > using libusb, instead of relying on the HID driver. That would allow > you to handle your data more efficiently, and with interrupts enabled. We tried this early on, but ran into other performance problems. Thanks for the idea, we may re-visit this. Thanks, Cliff -- ================= http://bec-systems.com -- 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
