Hi Wolfgang,
On Tue, Dec 13, 2011 at 7:14 PM, Wolfgang Denk wd@denx.de wrote:
Dear Graeme,
In message CALButCKwVh571bhgV9NQ82HYiFVJ=uGMFvVTYa5NV5M=kWvtGw@mail.gmail.com you wrote:
I have a need to dump memory contents to a filesystem on an SD/MMC card so I can transfer it to my dev PC. I don't have a working network driver, so TFTP is out
Add a network driver? :-)
I tried, but the technical documentation I have is somewhat less than perfect :( - I'm still chasing that up
Now I notice that U-Boot has code to support writing to FAT filesystems, but it does not appear to be plumbed in
Correct. (V)FAT support is read-only, like for nearly all other file systems.
Alternatively, I could patch up the recently posted ext4 code and give that a go
That would be a good idea - the more people testing that code, the better.
Is there any other existing mechanism to write a file to a filesystem on an SD/MMC card in U-Boot?
Yaffs is the only other file system in U-Boot that has write support.
If I were you, I'd try to get the ext4 code running.
OK, I'll focus on the ext4 patches
If you like, I can take on responsibility of getting them into mainline through the staging repo, but this is unlikely to happen until well into the new year
Regards,
Graeme