[Sdio-linux-devel] About device information

[Leon l. <as...@ms...>]

Hi,
     I am porting our wireless product to Linux.

I think that the register/unregister functions of SDIO stack are similar to
those of PCI.

However, pci allows us to store private data
     pci_set_drvdata(pci_dev, net_dev);

In other word, we need to use global variable to store our private data.

Check AR6000 :
function/wlan/ar6000/hif/hif.c
TARGET_FUNCTION_CONTEXT FunctionContext = {
     .function.pProbe     = hifDeviceInserted,
     .function.pRemove    = hifDeviceRemoved,
}

hifDeviceInserted(SDFUNCTION *function, SDDEVICE *handle)
{
    device = addHifDevice(handle);          <===== hifDevice[0]
}

hifDeviceRemoved(SDFUNCTION *function, SDDEVICE *handle)
{
    device = getHifDevice(handle);          <====== hifDevice[0]
}


Therefore, I think that we can follow the method of PCI to store device
information
linux/pci.h
struct pci_dev {
      struct    device    dev;        /* Generic device interface */
}
static inline void pci_set_drvdata (struct pci_dev *pdev, void *data);

Any suggestion ?


Regards,
Leon