Re: [PATCH 1/3] android/hidhost: Handle uhid output and feature events

[Ravi Kumar Veeramally <ravikumar.veeramally@linux.intel.com>]

Hi,

This patch is buggy. Conversion needs to be done like set_report and
send_data methods. I will send _v2 of this particular patch.
Sorry for inconvenience.

Thanks,
Ravi.

On 11/11/2013 02:15 PM, Ravi kumar Veeramally wrote:
> Data read on uhid events output and feature has to be send through
> SET_REPORT request to HID device.
> ---
>   android/hidhost.c | 37 ++++++++++++++++++++++++++++++++++++-
>   1 file changed, 36 insertions(+), 1 deletion(-)
>
> diff --git a/android/hidhost.c b/android/hidhost.c
> index 683938f..816fe3e 100644
> --- a/android/hidhost.c
> +++ b/android/hidhost.c
> @@ -155,7 +155,42 @@ static void hid_device_free(struct hid_device *dev)
>   
>   static void handle_uhid_event(struct hid_device *dev, struct uhid_event *ev)
>   {
> -	DBG("UHID_OUTPUT UHID_FEATURE unsupported");
> +	int fd;
> +	uint8_t *req = NULL;
> +	uint8_t req_size = 0;
> +
> +	if (!(dev->ctrl_io))
> +		return;
> +
> +	switch (ev->type) {
> +	case UHID_OUTPUT:
> +		req_size = 1 + ev->u.output.size;
> +		req = g_try_malloc0(req_size);
> +		if (!req)
> +			return;
> +
> +		req[0] = HID_MSG_SET_REPORT | HID_DATA_TYPE_OUTPUT;
> +		memcpy(req + 1, ev->u.output.data, ev->u.output.size);
> +		break;
> +
> +	case UHID_FEATURE:
> +		req_size = sizeof(struct uhid_feature_req);
> +		req = g_try_malloc0(req_size);
> +		if (!req)
> +			return;
> +
> +		req[0] = HID_MSG_SET_REPORT | HID_DATA_TYPE_FEATURE;
> +		memcpy(req + 1, (ev + sizeof(ev->type)), req_size - 1);
> +		break;
> +	}
> +
> +	fd = g_io_channel_unix_get_fd(dev->ctrl_io);
> +
> +	if (write(fd, req, req_size) < 0)
> +		error("error writing hid_set_report: %s (%d)",
> +						strerror(errno), errno);
> +
> +	g_free(req);
>   }
>   
>   static gboolean uhid_event_cb(GIOChannel *io, GIOCondition cond,