* semi-raw access to flash @ 2001-12-18 19:22 Russ Dill 2001-12-18 19:26 ` David Woodhouse 2001-12-18 19:33 ` Nicolas Pitre 0 siblings, 2 replies; 3+ messages in thread From: Russ Dill @ 2001-12-18 19:22 UTC (permalink / raw) To: linux-mtd I'm trying to get semi-raw access to flash in userspace. I'd like to be able to mmap the flash and write to it (with mtd handling the unlock commands) but not have mtd automatically cache and erase blocks, etc for me. /dev/mtd? would be great, but its only a char device, so I can't mmap it. /dev/mtdblock? is mmapable, but it tries to emulate a true block device with its automatic erasing and rewriting. ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: semi-raw access to flash 2001-12-18 19:22 semi-raw access to flash Russ Dill @ 2001-12-18 19:26 ` David Woodhouse 2001-12-18 19:33 ` Nicolas Pitre 1 sibling, 0 replies; 3+ messages in thread From: David Woodhouse @ 2001-12-18 19:26 UTC (permalink / raw) To: Russ Dill; +Cc: linux-mtd Russ.Dill@asu.edu said: > I'm trying to get semi-raw access to flash in userspace. I'd like to > be able to mmap the flash and write to it (with mtd handling the > unlock commands) but not have mtd automatically cache and erase > blocks, etc for me. Why? What are you trying to achieve? -- dwmw2 ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: semi-raw access to flash 2001-12-18 19:22 semi-raw access to flash Russ Dill 2001-12-18 19:26 ` David Woodhouse @ 2001-12-18 19:33 ` Nicolas Pitre 1 sibling, 0 replies; 3+ messages in thread From: Nicolas Pitre @ 2001-12-18 19:33 UTC (permalink / raw) To: Russ Dill; +Cc: linux-mtd On 18 Dec 2001, Russ Dill wrote: > I'm trying to get semi-raw access to flash in userspace. I'd like to be > able to mmap the flash and write to it (with mtd handling the unlock > commands) but not have mtd automatically cache and erase blocks, etc for > me. /dev/mtd? would be great, but its only a char device, so I can't > mmap it. Nothing prevents you from mmap()'ing a char device. In the MTD case it's only not implemented in the driver. Nicolas ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2001-12-18 19:22 UTC | newest] Thread overview: 3+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2001-12-18 19:22 semi-raw access to flash Russ Dill 2001-12-18 19:26 ` David Woodhouse 2001-12-18 19:33 ` Nicolas Pitre
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.