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HID: split picolcd's operation_mode sysfs attribute

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Original operation_mode sysfs attribute accepts the operation mode
as main value with an option delay as second value to change
the start-up delay on mode change.

As it is preferred to have exactly one value per sysfs attribute,
extract this delay into a separate sysfs attribute called
operation_mode_delay.

Signed-off-by: Bruno Prémont <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
This commit is contained in:
Bruno Prémont 2010-04-25 21:29:16 +02:00 • committed by Jiri Kosina
commit 0b5adf92ec
2 changed files with 58 additions and 21 deletions
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17
Documentation/ABI/testing/sysfs-driver-hid-picolcd
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@ -8,12 +8,21 @@ Description: Make it possible to switch the PicoLCD device between LCD
enclosed in brackets ('[' and ']')
Writing: causes operation mode switch. Permitted values are
the non-active mode names listed when read, optionally followed
by a delay value expressed in ms.
the non-active mode names listed when read.
Note: when switching mode the current PicoLCD HID device gets
disconnected and reconnects after above delay (default value
is 5 seconds though this default should not be relied on).
disconnected and reconnects after above delay (see attribute
operation_mode_delay for its value).
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/operation_mode_delay
Date: April 2010
Contact: Bruno Prémont <[email protected]>
Description: Delay PicoLCD waits before restarting in new mode when
operation_mode has changed.
Reading/Writing: It is expressed in ms and permitted range is
0..30000ms.
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/fb_update_rate