On Mon, 6 Jul 2009, Zbigniew Luszpinski wrote: > I hope I find here someone who wrote or know Linux ohci driver so he/she knows > how to slow down ohci bulk/iso IO operations without breaking hotplug. The speed of iso operations cannot be changed, because the transactions have to occur at a specified interval. OHCI doesn't provide any way to slow down bulk operations either, once a bulk URB has been submitted. The best you can do is slow down the rate of submission. But you already tried that and it didn't work. > It looks Linux ohci driver is more aggressive on ohci IO than windows one so > making Linux less timing demanding would help my MCP78S keep working. I suspect you're looking in the wrong direction. There's probably something wrong at a deeper level, in the chipset drivers for instance. Alan Stern -- 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
