Problem about fail to open wifi device

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Subject Author Date Problem about fail to open wifi device Kun Niu 09-05-2008  RE: Problem about fail to open wifi device Kun 09-05-2008  Re: Problem about fail to open wifi device vishal.g.shah@g... 09-09-2008  Re: Problem about fail to open wifi device Kun 09-10-2008  Re: Problem about fail to open wifi device vishal.g.shah@g... 09-10-2008

Posted by Kun Niu on September 5, 2008, 9:46 am Please log in for more thread options Dear all, I'm working on wifi for Windows Mobile. Each time I open the wifi device, I get an error code of 87. What does the error code mean? Any hint would be appreciated and thansk in advance. Posted by Kun Niu on September 5, 2008, 10:07 am Please log in for more thread options Sorry forget to mention that my Windows Mobile version is 6.0. And the error code is returned by DeviceIoControl. Thanks. "Kun Niu" wrote: show/hide quoted text > Dear all, > > I'm working on wifi for Windows Mobile. > Each time I open the wifi device, I get an error code of 87. > What does the error code mean? > Any hint would be appreciated and thansk in advance. Posted by vishal.g.shah@gmail.com on September 9, 2008, 11:32 pm Please log in for more thread options Hi Kun , you might have recieved that error because of invalid arguments being passed to DeviceIoControl error code 87 is ERROR_INVALID_PARAMETER see http://msdn.microsoft.com/en-us/library/ms681382(VS.85).aspx hope this helps ... show/hide quoted text > Sorry forget to mention that my Windows Mobile version is 6.0. > And the error code is returned by DeviceIoControl. > Thanks. > "Kun Niu" wrote: > > Dear all, > > I'm working on wifi for Windows Mobile. > > Each time I open the wifi device, I get an error code of 87. > > What does the error code mean? > > Any hint would be appreciated and thansk in advance.- Hide quoted text = - show/hide quoted text > - Show quoted text - Posted by Kun Niu on September 10, 2008, 9:34 am Please log in for more thread options Thank you for your reply. It seems that we find the cause of the problem. But we failed to solve it at present. We find that some system process takes up the device. So we failed to get the device. But it's a bit difficult for us to solve it. Really appreciate your kind reply. "vishal.g.shah@gmail.com" wrote: show/hide quoted text > Hi Kun , > you might have recieved that error because of invalid > arguments being passed to DeviceIoControl error code 87 is > ERROR_INVALID_PARAMETER > > > see > http://msdn.microsoft.com/en-us/library/ms681382(VS.85).aspx > > hope this helps ... > > > > Sorry forget to mention that my Windows Mobile version is 6.0. > > And the error code is returned by DeviceIoControl. > > Thanks. > > "Kun Niu" wrote: > > > Dear all, > > > I'm working on wifi for Windows Mobile. > > > Each time I open the wifi device, I get an error code of 87. > > > What does the error code mean? > > > Any hint would be appreciated and thansk in advance.- Hide quoted text - > > - Show quoted text - > > Posted by vishal.g.shah@gmail.com on September 10, 2008, 11:37 pm Please log in for more thread options Hi Kun, 1)can you please show the paramenters being passes to DeviceIoControl call .. 2)also have you checked the device handle you passed to DeviceIoControl is valid or not .. 3)do u get the error mentioned for the very first call made to DeviceIoControl ... 4) u can also refer wifi sample source codes from NETUI and WZC present in platform builder or or you can also refer wifi sample code available at http://www.codeproject.com/KB/mobile/PeekPocket.aspx show/hide quoted text > Thank you for your reply. > It seems that we find the cause of the problem. > But we failed to solve it at present. > We find that some system process takes up the device. > So we failed to get the device. > But it's a bit difficult for us to solve it. > Really appreciate your kind reply. > "vishal.g.s...@gmail.com" wrote: > > Hi Kun , > > =A0 =A0 =A0 =A0 =A0 =A0you might have recieved that error because of in= valid show/hide quoted text > > arguments being passed to DeviceIoControl error code 87 is > > ERROR_INVALID_PARAMETER > > see > >http://msdn.microsoft.com/en-us/library/ms681382(VS.85).aspx > > hope this helps ... > > > Sorry forget to mention that my Windows Mobile version is 6.0. > > > And the error code is returned by DeviceIoControl. > > > Thanks. > > > "Kun Niu" wrote: > > > > Dear all, > > > > I'm working on wifi for Windows Mobile. > > > > Each time I open the wifi device, I get an error code of 87. > > > > What does the error code mean? > > > > Any hint would be appreciated and thansk in advance.- Hide quoted t= ext - show/hide quoted text > > > - Show quoted text -- Hide quoted text - > - Show quoted text - Similar Threads Posted WiFi Connectivity Problem with using WinCE 5.0/O2-Atom February 2, 2006, 12:26 pm How can i open this kind of random files in smart device vb2005 pr December 28, 2005, 8:48 pm Problem in connecting to device November 24, 2006, 4:15 am HTML Control problem (device only) June 9, 2005, 5:48 am Smart Device project problem December 28, 2005, 2:30 am call LoadLibrary() fail June 13, 2006, 10:29 pm Embedded Live Messenger Problem to Mobile device April 13, 2008, 5:26 pm installation fail in windows mobile 5.0 August 29, 2006, 9:50 pm How to detect if the Bluetooth fail in connection? 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