SD Card ID - failed to query

[BRM]

I develop a PPC application that checks serial number and manufacturer of SD card inserted into PDA. It seems that Axim X5 does not return the standard STORAGE_IDENTIFICATION structure
{byte bManu; DWORD dwSize; DWORD dwFlags; DWORD; dwManufactureIDOffset; DWORD dwSerialNumOffset;}
on call of DeviceIoControl, rather it returns a CID (Card
Identification) stucture which is for MMC if I am right. Maybe this is intensional as slot supports both SD and MMC. Is there a way to get STORAGE_IDENTIFICATION data on Axim X5?
Could anyone please check this out? Can you query your SD card ID with PocketMechanic or something?