Hi Denis, On 15 April 2010 23:48, Denis Kenzior <[email protected]> wrote: > The terminal response goes something like this: > >> + >> + len = sprintf(buf, "AT+CSIM=%i,A0140000%02hhX", >> + 10 + length * 2, length); >> + >> + for (; length; length--) >> + len += sprintf(buf + len, "%02hhX", *value++); >> + > > In the new stk envelope code it goes something like this: > >> >> + len = sprintf(buf, "AT+CSIM=%i,A0C20000%02hhX", >> + 12 + length * 2, length); >> + >> + for (; length; length--) >> + len += sprintf(buf + len, "%02hhX", *command++); >> + >> + len += sprintf(buf + len, "FF"); > > What is the point of this last 'FF'? The code removed from the sim atom > driver doesn't have it either...
Rereading the etsi ts102.221 the "Le" field in the Envelope APDU (11.2.2.2) is not explictly defined "not present", instead it says "empty or maximum length of expected data". It doesn't say what the default value is when empty so I conclude it's safer to have the field present or the card may think it's not allowed to send any response at all -- depending on the implementer's interpretation of the spec. 10.1.6 says the field is the maximum respose length expected, but then some commands suggest it should be the exact length wanted and some make the field obligatory. Regards _______________________________________________ ofono mailing list [email protected] http://lists.ofono.org/listinfo/ofono
