Since kernel 2.6.17 there is support for a new type of SD/MMC card reader. I had trouble initially to get it working. It seems to be quite often in notebooks and is built by at least Texas Instruments, Ricoh and Toshiba. read more...
Traditionally, Unix/Linux/POSIX filenames can be almost any sequence of bytes, and their meaning is unassigned. The only real rules are that "/" is always the directory separator, and that filenames can't contain byte 0 (because this is the terminator). Although this is flexible, this creates many unnecessary problems. In particular, this lack of limitations makes it unnecessarily difficult to write correct programs (enabling many security flaws), makes it impossible to consistently and accurately display filenames, causes portability problems, and confuses users. more ....
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