Re: [Freedos-devel] [Freedos-user] writing a loadable block driver for 4k-sector drive (Questions)

2012-02-20 Thread Eric Auer
Hi Chris, Bertho, Dear List... I'm calling back with respect to the 4k-sector USB disk drive. I'm considering writing a loadable DOS 'block' driver for it, as Eric Auer suggested. This doesn't belong on Freedos-user then. Maybe Czerno / Bertho is not on freedos-devel? Or maybe there

Re: [Freedos-devel] [Freedos-user] writing a loadable block driver for 4k-sector drive (Questions)

2012-02-20 Thread C. Masloch
Another additional note, as I went thinking about this a bit. Only cluster values are stored in the FS (think FAT contents, FSINFO, and start cluster fields of directory entries) apart from what is in the *BPB, so a runtime upwards sector size transformation (say, from 512 B to 4 KiB,

Re: [Freedos-devel] [Freedos-user] writing a loadable block driver for 4k-sector drive (Questions)

2012-02-20 Thread Eric Auer
Hi Chris, NOTE: Transformation of sector sizes is easiest in FAT32. Other FAT sizes may take more effort. You're probably referring to the root directory alignment handling, which of course is not needed in FAT32 as its root directory is not in a specifically reserved area. Correct - in