Hi All,
1. I looked at Linux Device Drive 3rd Edition for TTY driver. I tried with tiny_tty driver mentioned in book. I am able to open the /dev/ttty0 and also get the attribute using TCGETA ioctl from user space. As I am trying to write e.g. echo "hi" > /dev/ttty0. I am not getting any data in tiny_write function.
2. Any information on when to use function related to flushing the data as flush_chars, wait_until_sent etc.
Any information on above will be helpful.
Thanks.
Regards,
_-_Mayank Rana_-_
--- On Mon, 9/8/08, Greg KH <greg@xxxxxxxxx> wrote:
From: Greg KH <greg@xxxxxxxxx>
Subject: Re: Writing Virtual Serial Comm port Driver
To: "mayank rana" <mayank_rana_it@xxxxxxxxxxx>
Cc: "kernelgroup linux" <kernelnewbies@xxxxxxxxxxxx>
Date: Monday, September 8, 2008, 11:24 AM
On Fri, Sep 05, 2008 at 11:45:45AM +0530, mayank rana wrote:
> Hi All,
>
> Is there any way to write virtual serial comm port driver in Linux ?
Yes, it's not that hard.
> I tried to get some information from all standard Linux Drivers book
> and google, but not able to get anything on it.
What specific problems are you having?
Have you tried starting with the tiny-tty driver in the Linux Device
Drivers book?
thanks,
greg k-h
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