Re: USB MSC, SD/ATA/NAND/RAM Disk

1. Yes
2. Are you talking about the internal RAM file system (object store fs)?

If so, as far as I know you can't set the internal RAM fs as store for MSC. You can reserve another block of RAM creating a disk using the RAM disk driver (see \WINCEX00\PUBLIC\COMMON\OAK\DRIVERS\BLOCK\RAMDISK).


Good luck,

Michel Verhagen, eMVP
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GSR wrote:
Hi,

From MS Help I observed that following registry need to be set for USB Mass Storage Class Driver to be loaded, in addition to USB Function Controller Registry Settings.

[HKEY_LOCAL_MACHINE\Drivers\USB\FunctionDrivers]
"DefaultClientDriver"=- ; erase previous default
[HKEY_LOCAL_MACHINE\Drivers\USB\FunctionDrivers]
"DefaultClientDriver"="Mass_Storage_Class"

[HKEY_LOCAL_MACHINE\Drivers\USB\FunctionDrivers\Mass_Storage_Class]
"Dll"="usbmsfn.dll"
"InterfaceSubClass"=dword:06 "InterfaceProtocol"=dword:50 "DeviceName"="DSK1:" "FriendlyName"="Mass Storage"
"idVendor"=dword:045E
"Manufacturer"="Generic Manufacturer (PROTOTYPE--Remember to change idVendor)"
"idProduct"=dword:FFFF
"Product"="Generic Mass Storage (PROTOTYPE--Remember to change idVendor)"
"bcdDevice"=dword:0

Consider a case for example My System is having SD Card, Harddisk on ATA, NAND Device and also RAM.

In registry the disks names are DSK1,DSK2,DSK3, for SD,HDD and NAND respectively.

I have two questions here:

1) Is SD Card will be shown as MSC when USB Device is connected to Host in the above case ? If not please correct me.

2) What are the settings that I have to do for having RAM Device as MSC instead of a Flash Device ?

Thank You & Regards,
Sudheer


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