Method 1: dependency window
Method 2: start with the Registry
Method 1:
Because both USB storage devices and SD cards are storage devices,
When the device is connected, enumerate the sub-keys under the Registry path "HKEY_LOCAL_MACHINE // drivers // active". Find the items that match this value in self-check according to P-> dbcp_name, check whether the value of the key item "key" contains the "drivers // USB // clientdrivers // mass_storage_class
Author: gooogleman@foxmail.com
Some time ago, songtitan Niu mentioned in the forum how to update NK using SD card. As follows:
Http://topic.csdn.net/u/20081009/17/4E0F5E66-C7A0-43D2-B33F-14E132280F70.html
You can update NK in CE and bootloader.1 under CEYou can directly use the file system API to read NK. Bin and put it into the memory buffer. You can use deviceioctl to call the interface of the NAND drive
As an extended storage device for mobile phones, SD cards act as hard disks on mobile phones, allowing our mobile phones to store more data, multimedia files, and other large files. Therefore, checking the memory of the SD card is the same as checking the remaining space on the hard disk. It is a common task. How can we obtain the memory capacity of the
1: If it is an ARM processor, create a folder named 2577 in the SD card andProgramPut autorun.exe in this folder, and the SD card program will automatically run.
2: in the registry, add the Startup File Path to "\ path \ my.exe"
3: SDK documentation for Windows Mobile-based Pocket pcsmanaging applications on sto
The first few days encountered a problem: Save the image to the SD card in the Android development app, and the user searched in the gallery, similar to the form of the cache. The first idea is to change the suffix name, for example, to save a picture as Image1.txt, so save of course no problem, but in the application of reading in the not, and later did not study why not read normally, after all, this meth
My experience:
Seeing some of the great God's instructions, I timidly entered the drivers/mmc/host/.
As the use of s3c2440, look at the driver, I will first find s3c words, so I noticed sdhci-s3c.c and S3CMCI.C.
Took a look at Kconfig
Config mmc_s3cTriState "Samsung s3c SD/MMC card Interface Support"Depends on arch_s3c2410HelpThis is selects a driver for the MCI interface found inSamsung ' s s3c2410, s3c241
1, because the simulator must be installed under the system disk, so the default SD card file is also stored in the C disk, then the expansion of capacity will inevitably lead to the reduction of C disk space, which is usually intolerable to users, so you also need to transfer it to the hard disk of other more free partitions, The following functions can be used
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