diff options
Diffstat (limited to 'Documentation/rfkill.txt')
-rw-r--r-- | Documentation/rfkill.txt | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/Documentation/rfkill.txt b/Documentation/rfkill.txt index 4d3ee317a4a3..40c3a3f10816 100644 --- a/Documentation/rfkill.txt +++ b/Documentation/rfkill.txt | |||
@@ -521,16 +521,12 @@ status of the system. | |||
521 | Input devices may issue events that are related to rfkill. These are the | 521 | Input devices may issue events that are related to rfkill. These are the |
522 | various KEY_* events and SW_* events supported by rfkill-input.c. | 522 | various KEY_* events and SW_* events supported by rfkill-input.c. |
523 | 523 | ||
524 | ******IMPORTANT****** | 524 | Userspace may not change the state of an rfkill switch in response to an |
525 | When rfkill-input is ACTIVE, userspace is NOT TO CHANGE THE STATE OF AN RFKILL | 525 | input event, it should refrain from changing states entirely. |
526 | SWITCH IN RESPONSE TO AN INPUT EVENT also handled by rfkill-input, unless it | 526 | |
527 | has set to true the user_claim attribute for that particular switch. This rule | 527 | Userspace cannot assume it is the only source of control for rfkill switches. |
528 | is *absolute*; do NOT violate it. | 528 | Their state can change due to firmware actions, direct user actions, and the |
529 | ******IMPORTANT****** | 529 | rfkill-input EPO override for *_RFKILL_ALL. |
530 | |||
531 | Userspace must not assume it is the only source of control for rfkill switches. | ||
532 | Their state CAN and WILL change due to firmware actions, direct user actions, | ||
533 | and the rfkill-input EPO override for *_RFKILL_ALL. | ||
534 | 530 | ||
535 | When rfkill-input is not active, userspace must initiate a rfkill status | 531 | When rfkill-input is not active, userspace must initiate a rfkill status |
536 | change by writing to the "state" attribute in order for anything to happen. | 532 | change by writing to the "state" attribute in order for anything to happen. |