And here is v2 of this patchset, changes from the original: [PATCH 2/4] usbdevfs: Add a USBDEVFS_GET_CAPABILITIES ioctl -making the caps ioctl parameter u32 instead of u64 [PATCH 4/4] usbdevfs: Use scatter-gather lists for large bulk -only use scatter-gather lists for large bulk transfers, not for other large transfers (ie isoc). -add a missing "totlen -= u;" statement in the loop allocating the per sg entry buffers, causing the last buffer to always be USB_SG_SIZE, even if a smaller buffer would suffice Regards, Hans -- 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