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MMC or SD card used or free space

 
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andreluizeng



Joined: 04 Apr 2006
Posts: 117
Location: Brasil

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MMC or SD card used or free space
PostPosted: Tue Feb 19, 2008 6:35 am     Reply with quote
Hi,

there´s a CMD to read the used or free space in this cards ?

thanks.
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Andre
asmallri



Joined: 12 Aug 2004
Posts: 1634
Location: Perth, Australia

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PostPosted: Tue Feb 19, 2008 6:53 pm     Reply with quote
CMDs are low level primitives. Using the appropriate CMD, you could determine the total number of blocks on the device but these primitives have no visibility into how the application (your file system or equivalent) are using the blocks.

Your file system driver is responsible for block usage and therefore it is the file system driver that has visibility into what blocks are used or free.
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Regards, Andrew

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