Hi Anderson, > > The advertising report event has the 'Length' field to inform the > > 'Data' field length, so I believe it has a variable length. > > According to its description, the 'Length' field may vary from 0x00 > > to 0x1F (31) bytes. > > You are right. Although the section 11 gives the impression the size > is always 31, this is not what happens on actual hardware, which > usually sends only the significant bytes (and the length is know from > the "Length" field. > > > The only drawback I see so far is copying extra ~200 bytes each time > > we get a advertising report data. > > I agree. If this event is being sent on each adv. data report event, > it will be more than 6 times the amount of data (with non-significant > bytes containing only zeroes) sent to userspace. if we wanna save bytes copied and send to userspace, then we might even fix this for BR/EDR. Since while it is fixed there only a fraction is used there most of the times. Regards Marcel -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
