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Re: conversion of cyg_io_handle_t type to filedescriptor of type integer
- To: Jonathan Larmour <jlarmour at redhat dot com>
- Subject: Re: [ECOS] conversion of cyg_io_handle_t type to filedescriptor of type integer
- From: Thiagarajan Rajasekaran <rajt at connecttel dot com>
- Date: Thu, 19 Jul 2001 10:02:02 -0500
- CC: ecos-discuss at sources dot redhat dot com
- References: <3B5479A4.7D8F88A5@connecttel.com> <3B5485BF.8ED5B64B@redhat.com>
Thanks a lot. I got my problem fixed.
Raj
Jonathan Larmour wrote:
> Thiagarajan Rajasekaran wrote:
> >
> > Hi,
> > I'm trying to use the ioctl(int fd, u_long cmd, void *data) defined in
> > ecos/packages/net/tcpip/src/lib/ioctl.c for my task. This function needs
> > filedescriptor fd as one of the parameters. In ECOS when you open a
> > serial device it gives you a handle of type cyg_io_handle_t. Is there a
> > way to get the filedescriptor from cyg_io_handle_t or I should write my
> > own version of ioctl()?. Please reply to me asap.
>
> Why do you need to use ioctl() when you can use something more appropriate
> like cyg_io_get_config()?
>
> But if you really want to implement it, the way to do it is with the fileio
> package, and use open() instead of cyg_io_open() etc. Then fill in the
> dev_fo_ioctl function in io/fileio/current/src/devfs.cxx.
>
> Jifl
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--
****************************************************************
* Thiagarajan Rajasekaran *
* ConnectTel, Inc. Austin, Texas. *
* Phone : 512-338-1111 Ext-104 Fax : 512-918-0449 *
* Email : rajt@connecttel.com *
* Site : http://www.connecttel.com *
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