Return-Path: Date: Tue, 6 Apr 2010 19:19:31 +0100 (BST) To: Garry Paxinos Cc: linux-bluetooth@vger.kernel.org Subject: Re: upper limit of bonded devices? In-Reply-To: References: MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="0-2115410775-1270577971=:823" Message-Id: <1270577971.764253.580.nullmailer@galant.ukfsn.org> From: Iain Hibbert Sender: linux-bluetooth-owner@vger.kernel.org List-ID: This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --0-2115410775-1270577971=:823 Content-Type: TEXT/PLAIN; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE On Tue, 6 Apr 2010, Garry Paxinos wrote: > Is there a practical upper limit of the number of devices that can be > bonded to a single computer? > > I am considering reworking the bonding code to use a MySQL DB to store > the list of devices, but was wondering if there was any other limit > (either coding or practical).=A0=A0 For example, can a single computer > bond with 1k devices?=A0 what about 100K or even 1M ? There is no reason it cannot pair with such a number of devices though I can't think how you will fit them all in your pocket.. =2E.but bear in mind that it cannot connect with more than 7 in a Bluetooth piconet at any one time. (perhaps with other transports it can do more) and because pairing generally involves human interaction, it is not a frequently occurring event. I suspect the vast majority of usage case is pairing with <10 in the lifetime of the device and that using a MySQL database would be just overkill.. but perhaps there are other, more minimal, data-storage front ends that can be used (cdb?), if you wanted to provide generic access to the information.. regards, iain --0-2115410775-1270577971=:823--