From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Marcel Holtmann <marcel@rvs.uni-bielefeld.de>
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 15:32:19 +0200 [thread overview]
Message-ID: <1053091938.2978.88.camel@gaston> (raw)
In-Reply-To: <1053091839.26550.125.camel@pegasus>
On Fri, 2003-05-16 at 15:30, Marcel Holtmann wrote:
> 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.
Can't you do some kind of ioctl or /proc entry to the card's driver
to pass it the firmware from userland and have the actual IO code in
the kernel ?
Ben.
next prev parent reply other threads:[~2003-05-16 13:32 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
2003-05-16 13:32 ` Benjamin Herrenschmidt [this message]
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1053091938.2978.88.camel@gaston \
--to=benh@kernel.crashing.org \
--cc=bluez-users@lists.sourceforge.net \
--cc=ejad@debian.org \
--cc=marcel@rvs.uni-bielefeld.de \
--cc=office@produktivIT.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.