linux-kernel - Re: [PATCH v9 1/1] gpio: add sloppy logic analyzer using polling

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 for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CACRpkdaC6i54qUfJ5H16m2wQhR89bXq26Pn0rZ-80m3a60-_mw@mail.gmail.com>
Date: Fri, 14 Jun 2024 14:14:27 +0200
From: Linus Walleij <linus.walleij@...aro.org>
To: Arnd Bergmann <arnd@...db.de>
Cc: Wolfram Sang <wsa+renesas@...g-engineering.com>, Bartosz Golaszewski <brgl@...ev.pl>, 
	Linux-Renesas <linux-renesas-soc@...r.kernel.org>, Jonathan Corbet <corbet@....net>, 
	Kent Gibson <warthog618@...il.com>, linux-doc@...r.kernel.org, 
	linux-kernel@...r.kernel.org, 
	"open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>
Subject: Re: [PATCH v9 1/1] gpio: add sloppy logic analyzer using polling

On Fri, Jun 14, 2024 at 1:59 PM Arnd Bergmann <arnd@...db.de> wrote:

> Of course we don't want to make it a first-class interface
> because of the reasons you explain in the cover letter,
> but it would totally make sense to me to call it a
> debugging feature of libgpio instead of calling it a
> standalone driver.

I second this opinion. The logic analyzer does in my mind
classify as a GPIO debugging feature. Surely someone
debugging anything connected to GPIO, such as a key or
MMC card detect or whatever could use this feature to see
what is going on on that line.

Yours,
Linus Walleij