From: Jiri Slaby <jirislaby@gmail.com>
To: Ira Snyder <iws@ovro.caltech.edu>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Simple UART driver help and TTY questions
Date: Wed, 06 Aug 2008 23:51:43 +0200 [thread overview]
Message-ID: <489A1CEF.4060302@gmail.com> (raw)
In-Reply-To: <20080806214635.GM6257@ovro.caltech.edu>
On 08/06/2008 11:46 PM, Ira Snyder wrote:
> On Wed, Aug 06, 2008 at 11:11:00PM +0200, Jiri Slaby wrote:
>> conOn 08/05/2008 06:33 PM, Ira Snyder wrote:
>>> static void tiny_config_port(struct uart_port *port, int flags)
>>> {
>>> FUNC_ENTER();
>> if (flags & UART_CONFIG_TYPE)
>> port->type = PORT_16550A;
>>
>>> }
>> According to the straces, you get -EIO from ioctl and read which most
>> likely means TTY_IO_ERROR bit set due to tiny_port->type = PORT_UNKNOWN
>> (i.e. 0). Try the above.
>
> Not quite, but it got me on the right track. I needed to set port->type
> before calling uart_add_one_port().
Ah,
.flags = ASYNC_BOOT_AUTOCONF
I guess?
+ I'm sure you will need to set up more entries of your uart_port structure.
prev parent reply other threads:[~2008-08-06 21:51 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-05 16:33 Simple UART driver help and TTY questions Ira Snyder
2008-08-05 21:21 ` Jiri Slaby
2008-08-06 19:32 ` Ira Snyder
2008-08-06 21:11 ` Jiri Slaby
2008-08-06 21:46 ` Ira Snyder
2008-08-06 21:51 ` Jiri Slaby [this message]
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