Linux bluetooth development
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From: Marcel Holtmann <marcel@rvs.uni-bielefeld.de>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Krisztian Mark Szentes <office@produktivIT.com>,
	BlueZ Mailing List <bluez-users@lists.sourceforge.net>,
	Edd Dumbill <ejad@debian.org>
Subject: Re: [Bluez-users] bt3c_cs time out - no firmware loaded?
Date: 16 May 2003 15:30:33 +0200	[thread overview]
Message-ID: <1053091839.26550.125.camel@pegasus> (raw)
In-Reply-To: <1053091452.2561.86.camel@gaston>

Hi Ben,

> Hrm... The problem isn't simple. You are just not supposed to tap IOs
> that way from userland, especially since PPC arch doesn't have anything
> like "PIO" instructions. The IO space of your card is actually mapped
> somewhere in physical memory, that "somewhere" not beeing generally
> available to userland.
> 
> Can you tell me more about the card ? Is it a 16 bits PCMCIA device or
> is it a cardbus (PCI) one ? Why can't you tap the IOs solely from within
> a kernel driver ?

this is a 16 Bit PCMCIA card. We need to load the firmware from
userspace, because we can't distribute it within the kernel driver due
the legal issues. At the moment we don't even distribute the firmware
file with our userspace firmware loader program.

Regards

Marcel




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  reply	other threads:[~2003-05-16 13:30 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <53B03DA73719D5119E6A0008C71E1D78030EA9A3@svr-mail1.corp.home.nl>
2003-05-08 13:43 ` [Bluez-users] bt3c_cs time out - no firmware loaded? Krisztian Mark Szentes
2003-05-12 20:29   ` Max Krasnyansky
2003-05-13  1:16     ` [Bluez-users] bt3c_cs time out - no firmware loaded? - problem persists Krisztian Mark Szentes
2003-05-13  0:17   ` [Bluez-users] bt3c_cs time out - no firmware loaded? Marcel Holtmann
2003-05-13  8:47     ` Krisztian Mark Szentes
2003-05-16 11:04       ` Marcel Holtmann
2003-05-16 12:38         ` Krisztian Mark Szentes
2003-05-16 13:16           ` Marcel Holtmann
2003-05-16 13:24           ` Benjamin Herrenschmidt
2003-05-16 13:30             ` Marcel Holtmann [this message]
2003-05-16 13:32               ` Benjamin Herrenschmidt
2003-05-16 13:39                 ` Marcel Holtmann
2003-05-16 13:47                   ` Benjamin Herrenschmidt
2003-05-16 13:57                     ` Marcel Holtmann
2003-05-16 14:11                       ` Benjamin Herrenschmidt
2003-05-16 14:25                         ` Marcel Holtmann
2003-05-16 14:48                           ` Benjamin Herrenschmidt
2003-05-16 14:22               ` Krisztian Mark Szentes
2003-05-16 14:32                 ` Marcel Holtmann
2003-05-16 14:51                   ` Krisztian Mark Szentes
2003-05-09  8:39 ` produktivIT

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