1. 18 8月, 2013 35 次提交
  2. 02 8月, 2013 4 次提交
  3. 01 8月, 2013 1 次提交
    • S
      [media] media: lirc: Allow lirc dev to talk to rc device · ca7a722d
      Srinivas Kandagatla 提交于
      The use case is simple, if any rc device has allowed protocols =
      RC_TYPE_LIRC and map_name = RC_MAP_LIRC set, the driver open will be never
      called. The reason for this is, all of the key maps except lirc have some
      KEYS in there map, so during rc_register_device process these keys are
      matched against the input drivers and open is performed, so for the case
      of RC_MAP_EMPTY, a vt/keyboard is matched and the driver open is
      performed.
      In case of lirc, there is no match and result is that there is no open
      performed, however the lirc-dev will go ahead and create a /dev/lirc0
      node. Now when lircd/mode2 opens this device, no data is available
      because the driver was never opened.
      Other case pointed by Sean Young, As rc device gets opened via the
      input interface. If the input device is never opened (e.g. embedded with
      no console) then the rc open is never called and lirc will not work
      either. So that's another case.
      lirc_dev seems to have no link with actual rc device w.r.t open/close.
      This patch adds rc_dev pointer to lirc_driver structure for cases like
      this, so that it can do the open/close of the real driver in accordance
      to lircd/mode2 open/close.
      Without this patch its impossible to open a rc device which has
      RC_TYPE_LIRC ad RC_MAP_LIRC set.
      Signed-off-by: NSrinivas Kandagatla <srinivas.kandagatla@st.com>
      Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
      ca7a722d