SDIO client driver
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From: Remco on 10 Mar 2010 07:44 Hi, I have an PDA with Windows Mobile 6.1 professional edition. This pda has an SD slot which can also work as an SDIO interface. Currently the windows mobile 6.1 version only supports sd cards. I also want to use the SDIO interface functionality. To do this I need an SDIO client driver that can communicate with the underlaying SD Bus driver which ships with wm6.1. I've been searching the internet for clues on how to build a client driver like this and so far I haven't found any usefull information of how to build this client driver. According to the microsoft site --"Windows CE 5.0 adds a software stack that enables SDIO sockets. The stack's SDBus driver loads host controller drivers below and exposes a standard API above that all SDIO client manufacturers can use to write device drivers for all Windows CE-based platforms"--. When I search on MSDN for this api there are no hits regarding any API for a client driver. I've searched my PDA for any usefull dlls and found out that a driver called sdbus.dll is loaded. This driver is presumably driving the sd bus itself so I should expect that this is the "API" that microsoft is talking about? However there is nothing to be found about the functions inside the sdbus.dll file. My question is how can I write a client driver for the SDIO interface, are there standard API's I could use to speak to the SD interface or is there another way? I hope somebody can help me. Kind regards, Remco PS i'm not using platform builder to buildin drivers into the OS, just visual studio with windows mobile 6.1 SDK and wince 5.0 SDK.
From: Karthikeyan on 15 Mar 2010 03:26 Hi, SDCard drivers are normally written by the OEM's and they would be providing the API to access the SDcard functions. These functions allow the application to check if SD card inserted / removed etc.. So check the SDK from the OEM. WM 6.1 is secured and allows to load only signed DLL (OEM set the security features). so just check with OEM. Rgds, Karthik On Mar 10, 5:44 pm, Remco <Re...(a)discussions.microsoft.com> wrote: > Hi, > > I have an PDA with Windows Mobile 6.1 professional edition. This pda has an > SD slot which can also work as an SDIO interface. Currently the windows > mobile 6.1 version only supports sd cards. I also want to use the SDIO > interface functionality. To do this I need an SDIO client driver that can > communicate with the underlaying SD Bus driver which ships with wm6.1. > > I've been searching the internet for clues on how to build a client driver > like this and so far I haven't found any usefull information of how to build > this client driver. According to the microsoft site --"Windows CE 5.0 adds a > software stack that enables SDIO sockets. The stack's SDBus driver loads host > controller drivers below and exposes a standard API above that all SDIO > client manufacturers can use to write device drivers for all Windows CE-based > platforms"--. When I search on MSDN for this api there are no hits regarding > any API for a client driver. > > I've searched my PDA for any usefull dlls and found out that a driver called > sdbus.dll is loaded. This driver is presumably driving the sd bus itself so I > should expect that this is the "API" that microsoft is talking about? However > there is nothing to be found about the functions inside the sdbus.dll file. > > My question is how can I write a client driver for the SDIO interface, are > there standard API's I could use to speak to the SD interface or is there > another way? > > I hope somebody can help me. > > Kind regards, > > Remco > > PS i'm not using platform builder to buildin drivers into the OS, just > visual studio with windows mobile 6.1 SDK and wince 5.0 SDK.
From: Remco on 15 Mar 2010 04:38
Hi, Thanks for your reply. I've checked with the OEM of the pocket pc and they told me that I had to write my own driver if I want to get the sdio functionality. They only provided the basic SD card functionality which is provided in windows mobile 6.1. I am my own OEM regarding the SDIO device I want to use for windows mobile 6.1. Is there a way I can use the already available SD card driver and turn it into a driver which supports SDIO functionality? "Karthikeyan" wrote: > Hi, > SDCard drivers are normally written by the OEM's and they would be > providing the API to access the SDcard functions. > These functions allow the application to check if SD card inserted / > removed etc.. So check the SDK from the OEM. > > WM 6.1 is secured and allows to load only signed DLL (OEM set the > security features). so just check with OEM. > > Rgds, > Karthik > > On Mar 10, 5:44 pm, Remco <Re...(a)discussions.microsoft.com> wrote: > > Hi, > > > > I have an PDA with Windows Mobile 6.1 professional edition. This pda has an > > SD slot which can also work as an SDIO interface. Currently the windows > > mobile 6.1 version only supports sd cards. I also want to use the SDIO > > interface functionality. To do this I need an SDIO client driver that can > > communicate with the underlaying SD Bus driver which ships with wm6.1. > > > > I've been searching the internet for clues on how to build a client driver > > like this and so far I haven't found any usefull information of how to build > > this client driver. According to the microsoft site --"Windows CE 5.0 adds a > > software stack that enables SDIO sockets. The stack's SDBus driver loads host > > controller drivers below and exposes a standard API above that all SDIO > > client manufacturers can use to write device drivers for all Windows CE-based > > platforms"--. When I search on MSDN for this api there are no hits regarding > > any API for a client driver. > > > > I've searched my PDA for any usefull dlls and found out that a driver called > > sdbus.dll is loaded. This driver is presumably driving the sd bus itself so I > > should expect that this is the "API" that microsoft is talking about? However > > there is nothing to be found about the functions inside the sdbus.dll file. > > > > My question is how can I write a client driver for the SDIO interface, are > > there standard API's I could use to speak to the SD interface or is there > > another way? > > > > I hope somebody can help me. > > > > Kind regards, > > > > Remco > > > > PS i'm not using platform builder to buildin drivers into the OS, just > > visual studio with windows mobile 6.1 SDK and wince 5.0 SDK. > > . > |