From: Greg KH <gregkh@linuxfoundation.org>
To: sean.wang@mediatek.com
Cc: andriy.shevchenko@linux.intel.com,
Steven Liu <steven.liu@mediatek.com>,
arnd@arndb.de, linux-kernel@vger.kernel.org,
Ryder Lee <ryder.lee@mediatek.com>,
linux-mediatek@lists.infradead.org,
tthayer@opensource.altera.com, linux-serial@vger.kernel.org,
jslaby@suse.com, matthias.bgg@gmail.com, sr@denx.de,
mika.westerberg@linux.intel.com,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v3] tty: serial: don't do termios for BTIF
Date: Wed, 22 Apr 2020 20:09:00 +0200 [thread overview]
Message-ID: <20200422180900.GA3454664@kroah.com> (raw)
In-Reply-To: <cc41ea10be9ab96568f0371784e3b9f8d9f434b9.1587577548.git.sean.wang@mediatek.com>
On Thu, Apr 23, 2020 at 02:02:08AM +0800, sean.wang@mediatek.com wrote:
> From: Sean Wang <sean.wang@mediatek.com>
>
> Bluetooth Interface (BTIF) is designed dedicatedly for MediaTek SOC with
> BT in order to be instead of the UART interface between BT module and Host
> CPU, and not exported to user space to access.
>
> As the UART design, BTIF will be an APB slave and can transmit or receive
> data by MCU access, but doesn't provide termios function like baudrate and
> flow control setup.
Why does it matter? If the connection isn't exported to userspace, who
would run those termios functions on the port?
thanks,
greg k-h
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next prev parent reply other threads:[~2020-04-22 18:09 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-22 18:02 [PATCH v3] tty: serial: don't do termios for BTIF sean.wang
2020-04-22 18:09 ` Greg KH [this message]
2020-05-05 11:10 ` Greg KH
2020-06-17 3:50 ` sean.wang
2020-04-22 19:20 ` Andy Shevchenko
2020-06-17 3:58 ` sean.wang
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