User Manual

21
Query and get the input password
Parameter：
icdev ：Value of device handle
rlen ：The length of returned data
cpass ：The input password
Return：
type ＝ 0x0，succeed to get password，rlen ＝ the length of password（1－8，according
to the user
’
s input）,cpass is password
type ＝ 0xa1，the length of the password overflow，the maximum is 25 digits
type ＝ 0xa2，cancel password inputting ，rlen ＝0，no data；
type ＝ 0xa3，not the status of password inputting，rlen ＝0，no data；
type ＝ 0xa4，not complete the operation of inputting password，rlen ＝0，no data;
type ＝ 0xa5，the operation of inputting password overtime
Remark：
The return value，0xa4，is important，it constantly appears in the process of
inquiring, indicates that inputting has been not completed.You can implement the
IC_PassGet function to get password.
__int16 fw_PassCancel(Int icdev);
Description：
Cancel the status of inputting password ，the device recovers the normal status.
Parameter：
icdev: Value of device handle
Return：
0 if successful;otherwise ，Nonzero
__int16 fw_ CheckKeyValue (int icdev,unsigned char *rlen,unsigned char
*retdata);
Description：
Inquire the input key value
Parameter：
icdev: value of device handle
rlen：the length of the return data
retdata：key value
Return：
0 if successful;otherwise ，Nonzero
2.4 S50（M1）Functions
int fw_card(int icdev,unsigned char _Mode,unsigned long *_Snr);
Description
Find card, can return the card serial Number in working area. (Contain the next
functions :fw_request,fw_anticoll,fw_select)