Koumajutsu
Android Expert
it looks like the XSR (BML and STL) driver is a low level device driver. JFFS2 is a filesystem driver that could already be in the kernel. I would think that the trick would be mounting a jffs2 image file to the system.
Embedded Linux: Using Compressed File Systems [LWN.net]
Edit: from what I've read, google's developers put YAFFS2 into the kernel
Embedded Linux: Using Compressed File Systems [LWN.net]
Edit: from what I've read, google's developers put YAFFS2 into the kernel