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Old 12-08-2009, 04:20 AM   #1
viswesh530
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Registered: Nov 2009
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Difference between the NAND and the SD block driver


Hi,

I am a relative newbie beginning work on the SD and NAND block devices. I was curious to know as to why requests to the SD card are handled in a separate kernel thread ( SD card is using FAT32) whereas requests to NAND (which is using YAFFS) are handled in the context of the thread making the read? Is there an advantage in having a separate thread to handle the requests? If yes, why is it not used for read/writes to the NAND. Opinions/pointers on where to look to understand the importance of the separate thread would be very helpful.

Thanks,
Viswesh
 
Old 12-09-2009, 03:32 AM   #2
MikeP
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Registered: Oct 2002
Location: In the Bay of Plenty, North Island, New Zealand
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You might find a clue on this page on how to damage a flash storage (NAND) device when using Linux.

I know it's not strictly related, but if nothing else, it makes for interesting reading.

Last edited by MikeP; 12-09-2009 at 03:34 AM.
 
  


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