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| author |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2009-10-12 20:17:41 -0700 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2009-10-30 14:59:51 -0700 |
| commit | 1a6f2a7512021ceae3c4201c7aab07f032e9ce91 (patch) | |
| tree | 03fdca9848003b3a6fda57113b3e750ec1e22a55 /include | |
| parent | Driver core: fix driver_register() return value (diff) | |
| download | linux-dev-1a6f2a7512021ceae3c4201c7aab07f032e9ce91.tar.xz linux-dev-1a6f2a7512021ceae3c4201c7aab07f032e9ce91.zip | |
Driver core: allow certain drivers prohibit bind/unbind via sysfs
Platform drivers registered via platform_driver_probe() can be bound
to devices only once, upon registration, because discard their probe()
routines to save memory. Unbinding the driver through sysfs 'unbind'
leaves the device stranded and confuses users so let's not create
bind and unbind attributes for such drivers.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Cc: Éric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/device.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/device.h b/include/linux/device.h index aca31bf7d8ed..2ea3e4921812 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -124,7 +124,9 @@ struct device_driver { struct bus_type *bus; struct module *owner; - const char *mod_name; /* used for built-in modules */ + const char *mod_name; /* used for built-in modules */ + + bool suppress_bind_attrs; /* disables bind/unbind via sysfs */ int (*probe) (struct device *dev); int (*remove) (struct device *dev); |