365                      * + 2 Automatic parameter configuration based on ATR data
825 static uint8_t atr_get_protocol_num(const uint8_t *atr, uint32_t len)  in atr_get_protocol_num()  argument
829     if (len < 2 || !(atr[1] & 0x80)) {  in atr_get_protocol_num()
833     i = 1 + !!(atr[1] & 0x10) + !!(atr[1] & 0x20) + !!(atr[1] & 0x40);  in atr_get_protocol_num()
834     i += !!(atr[1] & 0x80);  in atr_get_protocol_num()
835     return atr[i] & 0x0f;  in atr_get_protocol_num()
840     const uint8_t *atr = NULL;  in ccid_write_data_block_atr()  local
847         atr = ccid_card_get_atr(s->card, &len);  in ccid_write_data_block_atr()
849     atr_protocol_num = atr_get_protocol_num(atr, len);  in ccid_write_data_block_atr()
850     DPRINTF(s, D_VERBOSE, "%s: atr contains protocol=%d\n", __func__,  in ccid_write_data_block_atr()
852     /* set parameters from ATR - see spec page 109 */  in ccid_write_data_block_atr()
857         /* TODO: unimplemented ATR T0 parameters */  in ccid_write_data_block_atr()
865         /* TODO: unimplemented ATR T1 parameters */  in ccid_write_data_block_atr()
875         DPRINTF(s, D_WARN, "%s: error: unsupported ATR protocol %d\n",  in ccid_write_data_block_atr()
878     ccid_write_data_block(s, recv->bSlot, recv->bSeq, atr, len);  in ccid_write_data_block_atr()
1025         /* atr is written regardless of error. */  in ccid_handle_bulk_out()