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  1. 10 Oct, 2013 1 commit
    • Andrzej Pietrasiewicz's avatar
      usb: gadget: f_mass_storage: make sysfs interface optional · bd528d4e
      Andrzej Pietrasiewicz authored
      When configfs is in place, the luns will not be represented in sysfs,
      so there will be no struct device associated with a lun.
      In order to maintain compatibility and allow configfs adoption
      sysfs is made optional in this patch.
      
      As a consequence some debug macros need to be adjusted. Two new
      fields are added to struct fsg_lun: name and name_pfx.
      The "name" is for storing a string which is presented to the user
      instead of the dev_name. The "name_pfx", if non-NULL, is prepended
      to the "name" at printing time.
      
      The name_pfx is for a future lun.0, which will be a default group in
      mass_storage.<name>. By design at USB function configfs group's creation
      time its name is not known (but instead set a bit later in
      drivers/usb/gadget/configfs.c:function_make) and it is this name that
      serves the purpose of the said name prefix. So instead of copying
      a yet-unknown string a pointer to it is stored in struct fsg_lun.
      Signed-off-by: default avatarAndrzej Pietrasiewicz <andrzej.p@samsung.com>
      Signed-off-by: default avatarKyungmin Park <kyungmin.park@samsung.com>
      Acked-by: default avatarMichal Nazarewicz <mina86@mina86.com>
      Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
      bd528d4e
  2. 01 Oct, 2013 1 commit