linux-dexdrive block device compatibility

[sairuk]

I'd like to use this project in conjunction with the linux-dexdrive project here.

Any chance of that being added as a possible input?

# lsblk
NAME        MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
dexdrive0   254:0    1  128K  0 disk 

thanks.

[raphnet]

Interesting. If you dump a valid memory card using dd if=/dev/dexdrive0 of=somefile.bin how big is the resulting file? Do you know if the format is equivalent to a .mc or a .gme? (one quick test would be to attempt opening it with psxmemcardmgr)

[sairuk]

it seems to be mc format. 128k

-rw-r--r-- 1 pi   pi   131072 Dec 11 23:50 dex_card0.img
-rw-r--r-- 1 pi   pi   131072 Dec 12 01:30 dex_card1.img

pi@raspberrypi:/data/retronas $ cat dex_card0.img | hd | head -n10
00000000  4d 43 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |MC..............|
00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 0e  |................|
00000080  51 00 00 00 00 60 00 00  01 00 42 45 53 4c 45 53  |Q....`....BESLES|
00000090  2d 30 32 39 30 38 43 5a  48 50 56 42 30 00 00 00  |-02908CZHPVB0...|
000000a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
000000f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 05  |................|
00000100  52 00 00 00 00 00 00 00  02 00 00 00 00 00 00 00  |R...............|
pi@raspberrypi:/data/retronas $ 

i am in the middle of integrating the module into RetroNAS, i have some more work to do in that space and part of that is verifying the data that i've dumped with dd.

i also want to try writing back an image to an mc and check it on hw.

[sairuk]

opens fine in this tool, very cool. at a minimum i can offer our users dumping mc to fs for use with this tool as is but it would be good if they could interact directly with the device