After our thread some weeks ago regarding reading the serial number from a MMC card, I've since implemented detection of the MMC card's presence by the existence of those same files. I know my solution works on my device perfectly.
I figure it's probably a bad decision, because the architecture could change somewhat with the next hardware or software release. Can someone tell me, is there an approved / documented way of identifying the location of any MMC cards currently installed? I've noticed you can't simply look for /media/mmcX because that directory will exist even if there is no card inserted. Also, what determines MMC1 vs MMC2 as the card's path for internal/external? Is it possible these paths would change at some date? I know some Linux distro's with SATA drives had a problem with the drives changing their /dev/sdX path every reboot. I know that MY Nokia isn't doing anything similar, but I figure it's possible that my /media/mmc1 might be internal, but for someone else it could be the external slot - or maybe in the next hardware revision or something. I did find the alias names located in the /sys/ path that specify "internal" is for one and "external" or removable or something for the other. Also, are the names and paths the same for the 770's? Since I have an n800 I don't know. I'm hesitant to read too much data from /sys/ because it all looks _so_ Maemo-specific I wonder if I will tie my code too closely to one hardware revision. Just looking for the most _compatible_ way to identify if/when and where a media card is present. And as usual, from Python. Thanks, Tony
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