• David Brownell's avatar
    [MTD] driver model updates · 1f24b5a8
    David Brownell authored
    Update driver model support in the MTD framework, so it fits
    better into the current udev-based hotplug framework:
    
     - Each mtd_info now has a device node.  MTD drivers should set
       the dev.parent field to point to the physical device, before
       setting up partitions or otherwise declaring MTDs.
    
     - Those device nodes always map to /sys/class/mtdX device nodes,
       which no longer depend on MTD_CHARDEV.
    
     - Those mtdX sysfs nodes have a "starter set" of attributes;
       it's not yet sufficient to replace /proc/mtd.
    
     - Enabling MTD_CHARDEV provides /sys/class/mtdXro/ nodes and the
       /sys/class/mtd*/dev attributes (for udev, mdev, etc).
    
     - Include a MODULE_ALIAS_CHARDEV_MAJOR macro.  It'll work with
       udev creating the /dev/mtd* nodes, not just a static rootfs.
    
    So the sysfs structure is pretty much what you'd expect, except
    that readonly chardev nodes are a bit quirky.
    Signed-off-by: default avatarDavid Brownell <dbrownell@users.sourceforge.net>
    Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
    1f24b5a8
mtdchar.c 17.2 KB