Hi Andre, On Wed, Jun 6, 2012 at 8:40 PM, Andre Guedes <andre.guedes@xxxxxxxxxxxxx> wrote: > 23 octets is the default (and minimum) ATT_MTU value. If someone tries > to set ATT_MTU less than 23 octets g_attrib_set_mtu should fail (return > FALSE). Additionally, there is no constraint regarding the maximum value > of ATT_MTU, so we should not check for it. Even though the spec does not mention a maximum ATT_MTU, we now need to review and fix the ATT operations that mention limits on their PDU (now that we removed the "artificial" 256 octect limit). Some I found: - 3.2.9 Long Attribute Values (page 1839): The maximum length of an attribute value shall be 512 octets. - 3.4.4.2 Read By Type Response (page 1853): The maximum length of an attribute handle-value pair is 255 octets, bounded by the Length parameter that is one octet. - 3.4.4.10 Read by Group Type Response (page 1861): The maximum length of an Attribute Data is 255 octets, bounded by the Length parameter that is one octet. Also, what will happen to the ATT_MTU_MAX definition? Is it still being used in other places? Regards, -- Anderson Lizardo Instituto Nokia de Tecnologia - INdT Manaus - Brazil -- 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
