diff options
Diffstat (limited to 'doc/usage/cmd')
| -rw-r--r-- | doc/usage/cmd/printenv.rst | 2 | ||||
| -rw-r--r-- | doc/usage/cmd/sound.rst | 23 |
2 files changed, 22 insertions, 3 deletions
diff --git a/doc/usage/cmd/printenv.rst b/doc/usage/cmd/printenv.rst index 9cb20f6ce6f..d4184fd65e5 100644 --- a/doc/usage/cmd/printenv.rst +++ b/doc/usage/cmd/printenv.rst @@ -78,7 +78,7 @@ variable and how to specify a vendor GUID: => Configuration -============= +------------- UEFI variables are only supported if CONFIG_CMD_NVEDIT_EFI=y. The value of UEFI variables can only be displayed if CONFIG_HEXDUMP=y. diff --git a/doc/usage/cmd/sound.rst b/doc/usage/cmd/sound.rst index d3fac243b13..2cfe9b7ad15 100644 --- a/doc/usage/cmd/sound.rst +++ b/doc/usage/cmd/sound.rst @@ -10,12 +10,12 @@ Synopsis :: sound init - sound play [len [freq]] + sound play [[len freq] ...] [len [freq]] Description ----------- -The *sound* command is used to play a beep sound. +The *sound* command is used to play one or multiple beep sounds. sound init initializes the sound driver. @@ -30,6 +30,25 @@ len freq frequency of the sound in Hz, defaults to 400 Hz +Examples +-------- + +Beep at 400 Hz for 1000 ms:: + + sound play + +Beep at 400 Hz for 600 ms:: + + sound play 600 + +Beep at 500 Hz for 600 ms:: + + sound play 600 500 + +Play melody:: + + sound play 500 1047 500 880 500 0 500 1047 500 880 500 0 500 784 500 698 500 784 1000 698 + Configuration ------------- |