diff options
| author | David Brownell <dbrownell@users.sourceforge.net> | 2007-01-18 06:45:48 +0100 |
|---|---|---|
| committer | Dmitry Torokhov <dtor@insightbb.com> | 2007-01-18 06:45:48 +0100 |
| commit | 2c8dc071517ec2843869024dc82be2e246f41064 (patch) | |
| tree | 793c90a34b40d9f2a60eb108387b1077ec9e8861 /drivers/input/touchscreen/Kconfig | |
| parent | Input: ads7846 - detect pen up from GPIO state (diff) | |
| download | linux-2c8dc071517ec2843869024dc82be2e246f41064.tar.xz linux-2c8dc071517ec2843869024dc82be2e246f41064.zip | |
Input: ads7846 - be more compatible with the hwmon framework
- Hook up to hwmon
* show sensor attributes only if hwmon is present
* ... and the board's reference voltage is known
* otherwise be just a touchscreen
- Report voltages per hwmon convention
* measure in millivolts
* voltages are named in[0-8]_input (ugh)
* for 7846 chips, properly range-adjust vBATT/in1_input
Battery measurements help during recharge monitoring. On OSK/Mistral,
the measured voltage agreed with a multimeter to several decimal places.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input/touchscreen/Kconfig')
| -rw-r--r-- | drivers/input/touchscreen/Kconfig | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 29ca0ab0acb8..4bec8422821f 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -12,13 +12,18 @@ menuconfig INPUT_TOUCHSCREEN if INPUT_TOUCHSCREEN config TOUCHSCREEN_ADS7846 - tristate "ADS 7846 based touchscreens" + tristate "ADS 7846/7843 based touchscreens" depends on SPI_MASTER + depends on HWMON = n || HWMON help Say Y here if you have a touchscreen interface using the - ADS7846 controller, and your board-specific initialization + ADS7846 or ADS7843 controller, and your board-specific setup code includes that in its table of SPI devices. + If HWMON is selected, and the driver is told the reference voltage + on your board, you will also get hwmon interfaces for the voltage + (and on ads7846, temperature) sensors of this chip. + If unsure, say N (but it's safe to say "Y"). To compile this driver as a module, choose M here: the |