# Re: \[PATCH 07/16\] HID: wiimote: Parse accelerometer data

- From: Oliver Neukum \<hidden\>
- Date: 2011-07-28 18:14:11 
- List: linux-input
- Page: https://ratatoskr.run/linux-input/2011/07/8917357
- Thread: https://ratatoskr.run/linux-input/2011/07/8917340/t.md

```text
Am Donnerstag, 28. Juli 2011, 18:08:27 schrieb David Herrmann:
> +static void handler_accel(struct wiimote_data *wdata, const __u8 *payload)
> +{
> +       __u16 x, y, z;
> +
> +       if (!(wdata->state.flags & WIIPROTO_FLAG_ACCEL))
> +               return;
> +
> +       /*
> +        * payload is: BB BB XX YY ZZ
> +        * Buttons data contains LSBs
> +        */
> +
> +       x = payload[2] << 2;
> +       y = payload[3] << 2;
> +       z = payload[4] << 2;
> +
> +       x |= (payload[0] >> 5) & 0x3;
> +       y |= (payload[1] >> 4) & 0x2;
> +       z |= (payload[1] >> 5) & 0x2;

Could you make the comments a bit clearer. Those last lines are impossible
to understand.

	Regards
		Oliver
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