From: Marcel Holtmann <marcel@holtmann.org>
To: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>
Cc: Sebastian Reichel <sre@kernel.org>, Pavel Machek <pavel@ucw.cz>,
Rob Herring <robh@kernel.org>, Arnd Bergmann <arnd@arndb.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jslaby@suse.com>,
Peter Hurley <peter@hurleysoftware.com>,
NeilBrown <neil@brown.name>,
"Dr . H . Nikolaus Schaller" <hns@goldelico.com>,
Linus Walleij <linus.walleij@linaro.org>,
"open list:BLUETOOTH DRIVERS" <linux-bluetooth@vger.kernel.org>,
"linux-serial@vger.kernel.org" <linux-serial@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [RFC PATCH 0/3] UART slave device bus
Date: Wed, 24 Aug 2016 10:29:58 -0400 [thread overview]
Message-ID: <A8AA3046-E635-4697-BA01-86FFFBB5B2E0@holtmann.org> (raw)
In-Reply-To: <20160824145714.02bbebb3@lxorguk.ukuu.org.uk>
Hi Alan,
>> So you mean if I do "hciconfig hci0 down", then the uart-bus should
>> "down" the tty and only on "hciconfig hci0 up" it should "up" the
>> tty? I would expect a uart-bus slave-device takes control of the
>> device ("up" it) on probe. It's hardwired anyway.
>
> Today you can switch stacks at runtime, you can switch between the kernel
> stack and debug tools at runtime. Breaking that is a regression.
actually that is not true. We have HCI User Channel since a long time that gives you raw access to the devices. And also kernel interfaces to do all vendor / debug tasks.
Regards
Marcel
WARNING: multiple messages have this Message-ID (diff)
From: Marcel Holtmann <marcel-kz+m5ild9QBg9hUCZPvPmw@public.gmane.org>
To: One Thousand Gnomes
<gnomes-qBU/x9rampVanCEyBjwyrvXRex20P6io@public.gmane.org>
Cc: Sebastian Reichel <sre-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Pavel Machek <pavel-+ZI9xUNit7I@public.gmane.org>,
Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>,
Greg Kroah-Hartman
<gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>,
Jiri Slaby <jslaby-IBi9RG/b67k@public.gmane.org>,
Peter Hurley
<peter-WaGBZJeGNqdsbIuE7sb01tBPR1lH4CV8@public.gmane.org>,
NeilBrown <neil-+NVA1uvv1dVBDLzU/O5InQ@public.gmane.org>,
"Dr . H . Nikolaus Schaller"
<hns-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>,
Linus Walleij
<linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
"open list:BLUETOOTH DRIVERS"
<linux-bluetooth-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"linux-serial-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-serial-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [RFC PATCH 0/3] UART slave device bus
Date: Wed, 24 Aug 2016 10:29:58 -0400 [thread overview]
Message-ID: <A8AA3046-E635-4697-BA01-86FFFBB5B2E0@holtmann.org> (raw)
In-Reply-To: <20160824145714.02bbebb3-qBU/x9rampVanCEyBjwyrvXRex20P6io@public.gmane.org>
Hi Alan,
>> So you mean if I do "hciconfig hci0 down", then the uart-bus should
>> "down" the tty and only on "hciconfig hci0 up" it should "up" the
>> tty? I would expect a uart-bus slave-device takes control of the
>> device ("up" it) on probe. It's hardwired anyway.
>
> Today you can switch stacks at runtime, you can switch between the kernel
> stack and debug tools at runtime. Breaking that is a regression.
actually that is not true. We have HCI User Channel since a long time that gives you raw access to the devices. And also kernel interfaces to do all vendor / debug tasks.
Regards
Marcel
next prev parent reply other threads:[~2016-08-24 14:30 UTC|newest]
Thread overview: 139+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-18 1:14 [RFC PATCH 0/3] UART slave device bus Rob Herring
2016-08-18 1:14 ` [RFC PATCH 1/3] uart bus: Introduce new bus for UART slave devices Rob Herring
2016-08-18 1:14 ` [RFC PATCH 2/3] tty: serial_core: make tty_struct optional Rob Herring
2016-08-18 10:50 ` Pavel Machek
2016-08-18 1:14 ` [RFC PATCH 3/3] tty: serial_core: add uart controller registration Rob Herring
2016-08-18 10:22 ` [RFC PATCH 0/3] UART slave device bus Greg Kroah-Hartman
2016-08-18 10:22 ` Greg Kroah-Hartman
2016-08-18 10:30 ` Marcel Holtmann
2016-08-18 10:53 ` Greg Kroah-Hartman
2016-08-18 13:53 ` Rob Herring
2016-08-18 13:15 ` Rob Herring
2016-08-18 15:04 ` One Thousand Gnomes
2016-08-18 18:33 ` Rob Herring
2016-08-19 11:03 ` One Thousand Gnomes
2016-08-25 16:40 ` Rob Herring
2016-08-25 16:40 ` Rob Herring
2016-08-26 13:12 ` One Thousand Gnomes
2016-08-18 10:39 ` H. Nikolaus Schaller
2016-08-18 10:39 ` H. Nikolaus Schaller
2016-08-18 10:47 ` Pavel Machek
2016-08-18 10:54 ` H. Nikolaus Schaller
2016-08-18 10:54 ` H. Nikolaus Schaller
2016-08-18 10:57 ` Greg Kroah-Hartman
2016-08-18 11:14 ` H. Nikolaus Schaller
2016-08-18 11:14 ` H. Nikolaus Schaller
2016-08-18 11:14 ` H. Nikolaus Schaller
2016-08-18 14:40 ` One Thousand Gnomes
2016-08-18 14:40 ` One Thousand Gnomes
2016-08-18 14:58 ` Greg Kroah-Hartman
2016-08-18 11:27 ` H. Nikolaus Schaller
2016-08-18 10:49 ` Marcel Holtmann
2016-08-18 10:55 ` Greg Kroah-Hartman
2016-08-18 11:01 ` Marcel Holtmann
2016-08-18 11:24 ` Greg Kroah-Hartman
2016-08-18 11:42 ` Pavel Machek
2016-08-18 11:42 ` Pavel Machek
2016-08-18 11:51 ` Marcel Holtmann
2016-08-18 11:51 ` Marcel Holtmann
2016-08-18 15:14 ` One Thousand Gnomes
2016-08-18 15:13 ` One Thousand Gnomes
2016-08-18 11:10 ` Pavel Machek
2016-08-18 11:18 ` H. Nikolaus Schaller
2016-08-18 11:49 ` Marcel Holtmann
2016-08-18 12:16 ` H. Nikolaus Schaller
2016-08-18 12:16 ` H. Nikolaus Schaller
2016-08-18 15:15 ` One Thousand Gnomes
2016-08-18 11:47 ` Marcel Holtmann
2016-08-18 13:01 ` Pavel Machek
2016-08-18 15:16 ` One Thousand Gnomes
2016-08-18 11:02 ` H. Nikolaus Schaller
2016-08-18 11:02 ` H. Nikolaus Schaller
2016-08-18 11:41 ` Marcel Holtmann
2016-08-18 12:07 ` H. Nikolaus Schaller
2016-08-18 12:07 ` H. Nikolaus Schaller
2016-08-18 12:07 ` H. Nikolaus Schaller
2016-08-18 11:02 ` Pavel Machek
2016-08-18 13:07 ` Linus Walleij
2016-08-18 17:31 ` Marcel Holtmann
2016-08-18 14:25 ` One Thousand Gnomes
2016-08-18 15:14 ` H. Nikolaus Schaller
2016-08-18 15:14 ` H. Nikolaus Schaller
2016-08-18 15:38 ` One Thousand Gnomes
2016-08-18 18:31 ` H. Nikolaus Schaller
2016-08-18 18:31 ` H. Nikolaus Schaller
2016-08-18 22:25 ` Rob Herring
2016-08-19 11:38 ` One Thousand Gnomes
2016-08-19 15:36 ` Sebastian Reichel
2016-08-18 20:29 ` Sebastian Reichel
2016-08-18 23:08 ` Rob Herring
2016-08-19 5:21 ` Sebastian Reichel
2016-08-19 7:29 ` H. Nikolaus Schaller
2016-08-19 7:49 ` Oleksij Rempel
2016-08-19 7:49 ` Oleksij Rempel
2016-08-19 17:50 ` H. Nikolaus Schaller
2016-08-19 20:19 ` Oleksij Rempel
2016-08-19 20:19 ` Oleksij Rempel
2016-08-20 13:34 ` One Thousand Gnomes
2016-08-21 7:50 ` H. Nikolaus Schaller
2016-08-21 7:50 ` H. Nikolaus Schaller
2016-08-22 20:39 ` Sebastian Reichel
2016-08-22 21:23 ` H. Nikolaus Schaller
2016-08-22 21:43 ` Arnd Bergmann
2016-08-22 22:42 ` Sebastian Reichel
2016-08-22 22:52 ` One Thousand Gnomes
2016-08-22 23:10 ` Sebastian Reichel
2016-08-23 7:28 ` H. Nikolaus Schaller
2016-08-27 12:01 ` Michal Suchanek
2016-08-19 11:06 ` One Thousand Gnomes
2016-08-19 17:42 ` H. Nikolaus Schaller
2016-08-19 17:42 ` H. Nikolaus Schaller
2016-08-20 13:22 ` One Thousand Gnomes
2016-08-20 13:22 ` One Thousand Gnomes
2016-08-21 7:50 ` H. Nikolaus Schaller
2016-08-21 7:50 ` H. Nikolaus Schaller
2016-08-21 7:50 ` H. Nikolaus Schaller
2016-08-21 17:09 ` One Thousand Gnomes
2016-08-21 18:23 ` H. Nikolaus Schaller
2016-08-21 18:23 ` H. Nikolaus Schaller
2016-08-22 9:09 ` One Thousand Gnomes
2016-08-22 9:33 ` Marcel Holtmann
2016-08-22 9:33 ` Marcel Holtmann
2016-08-19 11:03 ` One Thousand Gnomes
2016-08-19 11:03 ` One Thousand Gnomes
2016-08-19 14:44 ` Sebastian Reichel
2016-08-22 12:37 ` Arnd Bergmann
2016-08-22 13:38 ` Rob Herring
2016-08-22 15:24 ` Arnd Bergmann
2016-08-22 15:28 ` Marcel Holtmann
2016-08-22 15:46 ` Arnd Bergmann
2016-08-22 15:45 ` One Thousand Gnomes
2016-08-22 21:07 ` Marcel Holtmann
2016-08-22 21:35 ` One Thousand Gnomes
2016-08-22 22:03 ` Sebastian Reichel
2016-08-22 22:46 ` One Thousand Gnomes
2016-08-22 23:41 ` Sebastian Reichel
2016-08-24 12:14 ` Linus Walleij
2016-08-22 16:44 ` Rob Herring
2016-08-22 17:02 ` One Thousand Gnomes
2016-08-22 17:30 ` Rob Herring
2016-08-22 17:30 ` Rob Herring
2016-08-22 17:38 ` One Thousand Gnomes
2016-08-22 21:16 ` Marcel Holtmann
2016-08-22 21:32 ` One Thousand Gnomes
2016-08-22 22:00 ` Pavel Machek
2016-08-22 22:54 ` One Thousand Gnomes
2016-08-22 23:57 ` Sebastian Reichel
2016-08-23 0:15 ` One Thousand Gnomes
2016-08-23 0:57 ` Sebastian Reichel
2016-08-24 13:57 ` One Thousand Gnomes
2016-08-24 13:57 ` One Thousand Gnomes
2016-08-24 14:29 ` Marcel Holtmann [this message]
2016-08-24 14:29 ` Marcel Holtmann
2016-08-23 11:42 ` Marcel Holtmann
2016-08-22 23:02 ` Sebastian Reichel
2016-08-22 20:00 ` Sebastian Reichel
2016-08-22 22:00 ` Rob Herring
2016-08-22 22:00 ` Rob Herring
2016-08-22 22:18 ` Sebastian Reichel
2016-08-23 21:04 ` Rob Herring
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