Can't set Smartreader v1 to 4.8MHz (mhz=480)

= Revision 9088 (probably since svn 9048)

= Issue Description Even with mhz=480 and autospeed=0 in oscam.server, the Smartreader v1 clock speed is set to 5.36MHz. If I set mhz=436, the reader is set to 4.36MHz.

= When the issue occurs On reader initilization

= How the issue is reproducable V13 card in Smartreader v1, oscam.server settings: cardmhz=500 (or 480), mhz=480

Full log is attached, here is a short piece at d=0 for illustration:

2013/12/11 17:22:58 77100468 h v13_smartreader [videoguard2] Restarting reader
2013/12/11 17:22:58 77100468 h v13_smartreader [videoguard2] creating thread for device Serial:Reader 9758043
2013/12/11 17:22:58 77304F80 r v13_smartreader [videoguard2] De SR_init
2013/12/11 17:22:58 77304F80 r v13_smartreader [videoguard2] initing smargo type SR
2013/12/11 17:22:58 77304F80 r v13_smartreader [videoguard2] Using 0x01/0x82 as endpoint for smartreader hardware detection
2013/12/11 17:22:58 77304F80 r Found reader with serial Reader 9758043 at 001:005
2013/12/11 17:22:58 77304F80 r Found smartreader device Serial:Reader 9758043
2013/12/11 17:22:58 77304F80 r v13_smartreader [videoguard2] reader type is 1
2013/12/11 17:22:58 77304F80 r v13_smartreader [videoguard2]  Pthread Wordt gecreeerd
2013/12/11 17:22:58 77304F80 r v13_smartreader [videoguard2] clocking for smartreader with smartreader protocol
2013/12/11 17:22:58 77304F80 r v13_smartreader [videoguard2] Reader initialized (device=Serial:Reader 9758043, detect=cd, mhz=480, cardmhz=480)
2013/12/11 17:22:58 77304F80 r v13_smartreader [videoguard2] card detected
2013/12/11 17:23:02 77304F80 r v13_smartreader [smartreader] ATR: 3F FF 11 25 03 10 80 41 B0 07 69 FF 4A 50 70 00 00 50 31 01 00 11 
2013/12/11 17:23:02 77304F80 r v13_smartreader [smartreader] Init card protocol T0, FI=1, F=372, D=1, N=3
2013/12/11 17:23:02 77304F80 r v13_smartreader [smartreader] Calculated work ETU is 69.66 us reader mhz = 534
2013/12/11 17:23:02 77304F80 r v13_smartreader [smartreader] autospeed = 0
2013/12/11 17:23:02 77304F80 r v13_smartreader [smartreader] Effectif reader settings mhz =534 F= 372 D= 1 N=3 T=0 inv=1 parity=ODD
2013/12/11 17:23:02 77304F80 r v13_smartreader [smartreader] ATR Fsmax is 5 MHz, clocking card to wanted user cardspeed off 5.34 MHz (specified in reader->mhz)