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<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'>Hi:<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-indent:18.0pt'><font size=1 face=Arial><span
lang=EN-US style='font-size:9.0pt;font-family:Arial'>I’m developing
USB-NIC driver , I want to control my hardware(cypress usb controller CY68013
and <st1:chmetcnv TCSC="0" NumberType="1" Negative="False" HasSpace="False"
SourceValue="3" UnitName="g" w:st="on">3G</st1:chmetcnv> IC) via winpcap,
and I met a problem;<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-indent:18.0pt'><font size=1 face=Arial><span
lang=EN-US style='font-size:9.0pt;font-family:Arial'>I want to read a register
of <st1:chmetcnv TCSC="0" NumberType="1" Negative="False" HasSpace="False"
SourceValue="3" UnitName="g" w:st="on">3G</st1:chmetcnv> IC, so in MyRead()
function, I open a device , and start the capture by calling <o:p></o:p></span></font></p>
<p class=MsoNormal style='text-indent:36.0pt'><font size=1 face=Arial><span
lang=EN-US style='font-size:9.0pt;font-family:Arial'>pcap_loop(adhandle,0,packet_handler,NULL),<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-indent:13.5pt'><font size=1 face=Arial><span
lang=EN-US style='font-size:9.0pt;font-family:Arial'> then, I call <o:p></o:p></span></font></p>
<p class=MsoNormal style='text-indent:36.0pt'><font size=1 face=Arial><span
lang=EN-US style='font-size:9.0pt;font-family:Arial'>pcap_sendpacket()<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-indent:13.5pt'><font size=1 face=Arial><span
lang=EN-US style='font-size:9.0pt;font-family:Arial'> to send a command to
my usb device so it will read register of <st1:chmetcnv TCSC="0" NumberType="1"
Negative="False" HasSpace="False" SourceValue="3" UnitName="g" w:st="on">3G</st1:chmetcnv>
IC via i<st1:chmetcnv TCSC="0" NumberType="1" Negative="False" HasSpace="False"
SourceValue="2" UnitName="C" w:st="on">2c</st1:chmetcnv> bus and reply the data
to PC witch I want to captured in packet_handler, the sending is ok,<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-indent:13.5pt'><font size=1 face=Arial><span
lang=EN-US style='font-size:9.0pt;font-family:Arial'>but when MyRead() function
return, IndexOutOfRangeException happened, can you tell me why?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
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