On Tue, Jul 24, 2018 at 11:05:29AM +0200, Guido Kiener wrote: > +struct usbtmc_ctrlrequest { > + struct usbtmc_request req; > + __u64 data; /* pointer to user space */ > +} __attribute__ ((packed)); Hint, this structure could just be: struct usbtmc_ctrlreqest { struct usbtmc_request req; __u8 data[0]; } __attribute__((__aligned__(8))); No more pointer mess anymore, right? thanks, greg k-h -- 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