mmc: Export internal host state through debugfs
commit6edd8ee60ac9b974bd6ec3b1bcb2aab02762fa8c
authorHaavard Skinnemoen <haavard.skinnemoen@atmel.com>
Thu, 24 Jul 2008 12:18:57 +0000 (24 14:18 +0200)
committerPierre Ossman <drzeus@drzeus.cx>
Sat, 26 Jul 2008 23:26:16 +0000 (27 01:26 +0200)
tree0f24dc879d9645935974489d152dd83815fcff68
parentc5d5e9c40fc6cabedd5fdc7441e6e9d37f5c9bba
mmc: Export internal host state through debugfs

When CONFIG_DEBUG_FS is set, create a few files under /sys/kernel/debug
containing information about an mmc host's internal state. Currently,
just a single file is created, "ios", which contains information about
the current operating parameters for the bus (clock speed, bus width,
etc.)

Host drivers can add additional files and directories under the host's
root directory by passing the debugfs_root field in struct mmc_host as
the 'parent' parameter to debugfs_create_*.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
drivers/mmc/core/Makefile
drivers/mmc/core/core.h
drivers/mmc/core/debugfs.c [new file with mode: 0644]
drivers/mmc/core/host.c
include/linux/mmc/host.h