mirror of https://gitee.com/openkylin/linux.git
ca7a722db1
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: Srinivas Kandagatla <srinivas.kandagatla@st.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com> |
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| .. | ||
| keymaps | ||
| Kconfig | ||
| Makefile | ||
| ati_remote.c | ||
| ene_ir.c | ||
| ene_ir.h | ||
| fintek-cir.c | ||
| fintek-cir.h | ||
| gpio-ir-recv.c | ||
| iguanair.c | ||
| imon.c | ||
| ir-jvc-decoder.c | ||
| ir-lirc-codec.c | ||
| ir-mce_kbd-decoder.c | ||
| ir-nec-decoder.c | ||
| ir-raw.c | ||
| ir-rc5-decoder.c | ||
| ir-rc5-sz-decoder.c | ||
| ir-rc6-decoder.c | ||
| ir-rx51.c | ||
| ir-sanyo-decoder.c | ||
| ir-sony-decoder.c | ||
| ite-cir.c | ||
| ite-cir.h | ||
| lirc_dev.c | ||
| mceusb.c | ||
| nuvoton-cir.c | ||
| nuvoton-cir.h | ||
| rc-core-priv.h | ||
| rc-loopback.c | ||
| rc-main.c | ||
| redrat3.c | ||
| streamzap.c | ||
| ttusbir.c | ||
| winbond-cir.c | ||