linux-kernel - Re: [PATCH] i2c: bcm2835: Set up the clock stretching timeout at boot.

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 linux-cve-announce 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:	Mon, 4 Jul 2016 09:31:19 +0900
From:	Wolfram Sang <wsa@...-dreams.de>
To:	Eric Anholt <eric@...olt.net>
Cc:	linux-rpi-kernel@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Stephen Warren <swarren@...dotorg.org>,
	Lee Jones <lee@...nel.org>, linux-i2c@...r.kernel.org
Subject: Re: [PATCH] i2c: bcm2835: Set up the clock stretching timeout at
 boot.

> +	/*
> +	 * SMBUS says "Devices participating in a transfer will
> +	 * timeout when any clock low exceeds the value of
> +	 * T_TIMEOUT,MIN of 25 ms."
> +	 */

SMBus has that timeout, but I2C doesn't. How about disabling the timeout
simply? Or using the max value if you want to keep the timeout
detection?


Download attachment "signature.asc" of type "application/pgp-signature" (820 bytes)