Saving small amounts of data | Programming

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#18168 - 20/09/2000 02:35 Saving small amounts of data
Wire member Registered: 11/09/2000 Posts: 143 Loc: Jylland, Denmark	AFAIK the player registers its state in /proc/state, which the kernel saves to flash-memory upon powerdown/powerloss. This is to reduce the number of times the state is written to flash, I presume. Are there any way to have this done for your own software? Are there any areas of the flash that can be safely used by a software developer for A journaling filesystem would be a nice alternative, though Lars _________________________ Lars MkII 40gig 090000598
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#18169 - 20/09/2000 05:44 Re: Saving small amounts of data [Re: Wire]
altman carpal tunnel Registered: 19/05/1999 Posts: 3457 Loc: Palo Alto, CA	Currently, 0xa000-0xbfff is an unused page in flash. You can open /dev/empegflash0a000 (or something similar, I can't remember the exact filename at the moment) and write to this. Open it with O_SYNC as one of the open() options, and do a sync() after closing it to ensure the data has been written back to flash. Hugo
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