Question first, then explanation.
How do I use losetup (which is what I think I need) with a character
memory device and mount an FS on it? SPI EEPROM and LittleFS specifically.
Yes, it's a bad idea, probably, but I just want to have a play and lack
of NuttX/POSIX/Linux knowledge has bitten my behind again. This is
perhaps the 3rd time over the years I've asked but even checking the dev
emails archive and I can't find what I need.
SPI EEPROM is correctly registered as /dev/at25 and I can read/write/etc
to it as a character device. NB: it does not initialize in the same way
as an I2C EEPROM so you can't directly initialise it as an mtd. It is
for storage of settings, and some of the values may change 10,000's time
over the life of the product, hence EEPROM with 1,000,000+ write cycles.
But there is then no wear levelling or anything like that as just a
character device, so I thought I'd have a play, and LittleFS has a small
minimum sector size and *might* work. A quick Google turns up the same
Linux-related losetup examples that don't seem relevant; my Googling
skills are probably as bad as those of my software engineering
<grin><rolleyes>.
Any pointers/suggestions please?
