On Thu, 29 Oct 2015, Matthew Dharm wrote: > Uhh... I think this is a bad idea. The 120K limit was chosen based on > seeing a lot of devices which broke if you tried to transfer more. At > least, that's my memory. Otherwise, it's a really goofy number. > > I certainly wouldn't mind you increasing it in the case of a USB 3.x > device, but not globally.
That's what I remember also. Besides, we have a sysfs interface for changing this value, so the number in the driver doesn't have to be permanent for every device. In fact, there are quite a few USB storage devices which break if you try to transfer more than 64 KB at a time. That's what Windows uses by default (although maybe they use a larger value for USB-3 devices). Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
