Problem with my mtd driver
mtd at mcmen.demon.co.uk
Sun Sep 1 15:26:42 EDT 2002
I am writing a driver for the Dreamcast's mtd device.
Reads now work fine. But writes fail - without, it seems my code being toched
at all (I am using the demo char driver in the kernel to test).
cat foo > /dev/mtd/0
cannot create /dev/mtd/0: Permission denied
Yet /dev/mtd/0 already exists....
ls -l /dev/mtd
crw-rw-rw- 1 0 0 90, 0 Jan 1 1970 0
crw-rw-rw- 1 0 0 90, 1 Jan 1 1970 0ro
As you can see, I am using devfs.
Any ideas as to what is up?
I have put a simply printk at the start of my write routine....
static int vmu_flash_write(struct mtd_info *mtd, loff_t from, size_t len,
size_t * retlen, const u_char * buf)
But it never seems to get called....
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