From: Mayank BATRA <mayank.batra@st.com>
To: "'BlueZ development'" <bluez-devel@lists.sourceforge.net>
Date: Wed, 28 Mar 2007 15:36:20 +0530
Message-ID: <007801c77120$bb936640$9d0cc70a@dlh.st.com>
MIME-Version: 1.0
In-Reply-To: <1175075766.15698.107.camel@cookie.hadess.net>
Subject: Re: [Bluez-devel] hcid returning "Device or resource busy"?
Reply-To: BlueZ development <bluez-devel@lists.sourceforge.net>
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Sender: bluez-devel-bounces@lists.sourceforge.net
Errors-To: bluez-devel-bounces@lists.sourceforge.net

> > > I've been wondering why my devices weren't showing up in
> > > nautilus-sendto, and it looks like DiscoverDevices 
> doesn't work. Here's
> > > the snippet of code:
> > > 
> > >         dbus_g_proxy_call (object, "DiscoverDevices", &e,
> > >                            G_TYPE_INVALID, G_TYPE_INVALID);
> > >         if (e != NULL) {
> > >                 g_warning ("Couldn't start discovery: %s: %s",
> > >                            dbus_g_error_get_name (e), e->message);
> > >                 g_error_free (e);
> > >         }
> > > 
> > > I do a list ListBondings before that on the same object, 
> so I know that
> > > it works. But I still get that error:
> > > Couldn't start discovery: org.bluez.Error.Failed: Device 
> or resource busy
> > 
> > please run "hcidump -X -V" to see what happens on the HCI 
> layer. Do you
> > have running anything else at the same time.
> 
> Nope, not doing anything else, apart from having the applet 
> running, let
> me attach the hcidump output.

[...]

> HCI Event: Command Status (0x0f) plen 4
>     Remote Name Request Cancel (0x01|0x001a) status 0x01 ncmd 1
>     Error: Unknown HCI Command

Looks like a BT1.1 dongle to me since Remote Name Request Cancel was
introduced after that.
And since the device is not yet finished paging during the remote name
request, it disallows the Inquiry Command.

Solution: Get yourself a dongle > BT1.1 !

Best Regards,

Mayank


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