From owner-freebsd-hackers@FreeBSD.ORG Tue Nov 16 19:36:12 2004 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E361216A4CE for ; Tue, 16 Nov 2004 19:36:11 +0000 (GMT) Received: from webmail-outgoing.us4.outblaze.com (webmail-outgoing.us4.outblaze.com [205.158.62.67]) by mx1.FreeBSD.org (Postfix) with ESMTP id C020043D46 for ; Tue, 16 Nov 2004 19:36:11 +0000 (GMT) (envelope-from fernando@bsdmail.org) Received: from wfilter.us4.outblaze.com (wfilter.us4.outblaze.com [205.158.62.180])80D2C18002B6 for ; Tue, 16 Nov 2004 19:36:11 +0000 (GMT) X-OB-Received: from unknown (205.158.62.86) by wfilter.us4.outblaze.com; 16 Nov 2004 19:36:11 -0000 Received: by ws5-4.us4.outblaze.com (Postfix, from userid 1001) id 62A6923EE65; Tue, 16 Nov 2004 19:36:11 +0000 (GMT) Content-Type: text/plain; charset="iso-8859-1" Content-Disposition: inline Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Received: from [216.213.8.24] by ws5-4.us4.outblaze.com with http for fernando@bsdmail.org; Wed, 17 Nov 2004 03:36:11 +0800 From: "Fernando Durango" To: freebsd-hackers@freebsd.org Date: Wed, 17 Nov 2004 03:36:11 +0800 X-Originating-Ip: 216.213.8.24 X-Originating-Server: ws5-4.us4.outblaze.com Message-Id: <20041116193611.62A6923EE65@ws5-4.us4.outblaze.com> Subject: trouble sending bytes to uhid (Griffin PowerMate on 5.3-STABLE/i386) X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 16 Nov 2004 19:36:12 -0000 Hello all, I have a Griffin PowerMate[1] that I would love to be able to manipulate via uhid on FreeBSD. Running a USB sniffer on a win32 box shows the device spews 6 bytes of data on dial movement and/or button pressing, and the pc sending one byte to the PowerMate occasionally, which seems to effect LED brightness on the Powermate. I am able to read and interpret the device output with perl(sysopen & sysread), but I am unable to send bytes back to the device (syswrite). The device shows up as follows: $ dmesg | grep uhid uhid0: Griffin Technology, Inc. Griffin PowerMate, rev 1.00/4.00, addr 2, i= class 3/0 $ usbdevs -d -v addr 1: full speed, self powered, config 1, UHCI root hub(0x0000), Intel(0x= 0000), rev 1.00 uhub1 port 1 addr 2: low speed, power 100 mA, config 1, Griffin PowerMate(0x0410= ), Griffin Technology, Inc.(0x077d), rev 4.00 uhid0 $ usbhidctl -r -f /dev/uhid0 Report descriptor: Collection page=3DConsumer usage=3DConsumer_Control Input size=3D1 count=3D1 page=3DButton usage=3DButton_1, logical range 0.= .1 Input size=3D8 count=3D1 page=3DGeneric_Desktop usage=3DRx, logical range= -127..127 Input size=3D8 count=3D1 page=3DConsumer usage=3DConsumer_Control, logica= l range 0..255 Input size=3D8 count=3D1 page=3DConsumer usage=3DConsumer_Control, logica= l range 0..255 Input size=3D8 count=3D1 page=3DConsumer usage=3DConsumer_Control, logica= l range 0..255 Input size=3D8 count=3D1 page=3DConsumer usage=3DConsumer_Control, logica= l range 0..255 Output size=3D8 count=3D1 page=3DConsumer usage=3DConsumer_Control, logica= l range 0..255 Feature size=3D8 count=3D1 page=3DConsumer usage=3DConsumer_Control, logica= l range 0..255 Feature size=3D8 count=3D1 page=3DConsumer usage=3DConsumer_Control, logica= l range 0..255 Feature size=3D8 count=3D1 page=3DConsumer usage=3DConsumer_Control, logica= l range 0..255 Feature size=3D8 count=3D1 page=3DConsumer usage=3DConsumer_Control, logica= l range 0..255 Feature size=3D8 count=3D1 page=3DConsumer usage=3DConsumer_Control, logica= l range 0..255 Feature size=3D8 count=3D1 page=3DConsumer usage=3DConsumer_Control, logica= l range 0..255 Feature size=3D8 count=3D1 page=3DConsumer usage=3DConsumer_Control, logica= l range 0..255 Feature size=3D8 count=3D1 page=3DConsumer usage=3DConsumer_Control, logica= l range 0..255 End collection Total input size 6 bytes Total output size 0 bytes Total feature size 0 bytes perl code for reading: sysopen(DATA, "/dev/uhid0", O_RDONLY | O_NODELAY | O_BINARY) or die "could not open $device!\n"; while (1) { my $buf; if (sysread(DATA, $buf, 6)) { my @ascii =3D map { ord } split //, $buf; foreach ( @ascii ) { print "$_\t"; } print "\n"; } } perl code for writing: sysopen(DATA, "/dev/uhid0", O_RDWR) or die "could not open $device!\n"; $val =3D 0xff; if (length($bbq) !=3D syswrite(DATA, $bbq, length($bbq))) { die "This is Bad: $!\n"; } close(DATA); When trying to write, I get the error "This is Bad: Bad file descriptor" Is it not possible to write to a uhid device? Thanks in advance! -F --=20 _______________________________________________ Get your free email from http://mymail.bsdmail.com Powered by Outblaze