lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Sat, 08 Mar 2014 16:11:45 +0100
From:	Henrik Rydberg <rydberg@...omail.se>
To:	Roger Quadros <rogerq@...com>, dmitry.torokhov@...il.com
CC:	jcbian@...cir.com.cn, balbi@...com, dmurphy@...com,
	mugunthanvnm@...com, linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v2 4/8] Input: pixcir_i2c_ts: Use Type-B Multi-Touch protocol

Hi Roger,

the MT implementation seems mostly fine, just one curiosity:

>  static irqreturn_t pixcir_ts_isr(int irq, void *dev_id)
>  {
>  	struct pixcir_i2c_ts_data *tsdata = dev_id;
>  	const struct pixcir_ts_platform_data *pdata = tsdata->chip;
> +	struct pixcir_report_data report;
>  
>  	while (!tsdata->exiting) {
> -		pixcir_ts_poscheck(tsdata);
> -
> -		if (gpio_get_value(pdata->gpio_attb))
> +		/* parse packet */
> +		pixcir_ts_parse(tsdata, &report);
> +
> +		/* report it */
> +		pixcir_ts_report(tsdata, &report);
> +
> +		if (gpio_get_value(pdata->gpio_attb)) {
> +			if (report.num_touches) {
> +				/*
> +				 * Last report with no finger up?
> +				 * Do it now then.
> +				 */
> +				input_mt_sync_frame(tsdata->input);
> +				input_sync(tsdata->input);

Why is this special handling needed?

Thanks,
Henrik

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists