linux-kernel - Re: [PATCH 11/12] hwmon: lis3: Short explanations of platform data fields

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Date:	Fri, 22 Oct 2010 17:25:18 +0100
From:	Jonathan Cameron <jic23@....ac.uk>
To:	Samu Onkalo <samu.p.onkalo@...ia.com>
CC:	eric.piel@...mplin-utc.net, khali@...ux-fr.org,
	guenter.roeck@...csson.com, lm-sensors@...sensors.org,
	linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 11/12] hwmon: lis3: Short explanations of platform data
 fields

On 10/22/10 12:57, Samu Onkalo wrote:
> Short documentation at kernel doc format.
> 
Please check the use of tabs etc in the alignment of the documentation.
It might work out right, but looks a bit random currently.

Couple of typos.  Otherwise looks fine to me, but I'll only give
a reviewed by on this as I really don't know the devices well enough!
> Signed-off-by: Samu Onkalo <samu.p.onkalo@...ia.com>
> ---
>  include/linux/lis3lv02d.h |   41 +++++++++++++++++++++++++++++++++++++++++
>  1 files changed, 41 insertions(+), 0 deletions(-)
> 
> diff --git a/include/linux/lis3lv02d.h b/include/linux/lis3lv02d.h
> index c949612..da294cd 100644
> --- a/include/linux/lis3lv02d.h
> +++ b/include/linux/lis3lv02d.h
> @@ -1,6 +1,47 @@
>  #ifndef __LIS3LV02D_H_
>  #define __LIS3LV02D_H_
>  
> +/**
> + * struct lis3lv02d_platform_data - lis3 chip family platform data
> + * @click_flags:       Click detection unit configuration
> + * @click_thresh_x:    Click detection unit x axis treshold
threshold
> + * @click_thresh_y:    Click detection unit y axis treshold
> + * @click_thresh_z:    Click detection unit z axis treshold
> + * @click_time_limit:  Click detection unit time parameter
> + * @click_latency:     Click detection unit latency parameter
> + * @click_window:      Click detection unit window parameter
> + * @irq_cfg:	       On chip irq configuration (click / data available / wu)
wu isn't a terribly helpful acronym, please put it in long hand.  iirc kernel
doc lets you use multiple lines for parameter descriptions...
> + * @irq_flags1:	       Additional irq triggering flags for irq channel 0
> + * @irq_flags2:	       Additional irq triggering flags for irq channel 1
> + * @duration1:	       Wake up unit 1 duration parameter
> + * @duration2:	       Wake up unit 2 duration parameter
> + * @wakeup_flags:      Wakeup unit 1 flags
> + * @wakeup_thresh:     Wakeup unit 1 threshold value
> + * @wakeup_flags2:     Wakeup unit 2 flags
> + * @wakeup_thresh2:    Wakeup unit 2 threshold value
> + * @hipass_ctrl:       Hi-pass filter control
High-pass
> + * @axis_x:	       Remap parameter for x-axis
> + * @axis_y:	       Remap parameter for y-axis
> + * @axis_z:	       Remap parameter for z-axis
> + * @driver_features:   Enable bits for different features. Disabled by default
> + * @default_rate:      Default sampling rate. 0 means reset default
> + * @setup_resources:   Interrupt line setup call back function
> + * @release_resources: Interrupt line release call back function
> + * @st_min_limits[3]:  Selftest acceptance minimum values
> + * @st_max_limits[3]:  Selftest accepratnce maximum values
acceptance
> + * @irq2:	       Irq line 2 number
> + *
> + * Platform data is used to setup the sensor chip. Meaning of the different
> + * chip features can be found from the data sheet. Currently the data is used
> + * only for the 8 bit device. The 8 bit device has two wake up / free fall
> + * detection units and click detection unit. There are plenty of ways to
> + * configure the chip which makes is quite impossible to explain meaning of the
> + * fields here. Behaviour of the detection blocks varies heavily depending
> + * on the configuration. Irq_flags can be used to enable interrupt detection
> + * on the both edges. With proper chip configuration this produces interrupt
> + * when some trigger starts and when it goes away.
> + */
> +
>  struct lis3lv02d_platform_data {
>  	/* please note: the 'click' feature is only supported for
>  	 * LIS[32]02DL variants of the chip and will be ignored for

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