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Date: Thu, 03 Apr 2008 15:48:01 +0200
From: Xavier Bestel <xavier.bestel@...e.fr>
To: linux-usb@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Subject: ASUS ScreenDuo
Hi,
I have an ASUS motherboard with an USB gadget, the ASUS ScreenDUO. It's
an independant little lcd screen with buttons, apparently it runs some
kind of OS because it can access the net (e.g. to retrieve RSS) even
when the computer is off - I guess they mean soft-off.
Well, all that is theory because it's under Vista, which I don't have.
Under Linux the ScreenDUO is kind-of recognized: it says it's a mass
storage device, but I can't mount it (the kernel says it's bound to sdc,
but sdc doesn't exist).
I'd like to access it. Does anyone know how that thing works ?
Thanks,
Xav
PS: please Cc: me on anwers
interesting dmesg part:
usb 7-4: new high speed USB device using ehci_hcd and address 3
usb 7-4: configuration #1 chosen from 1 choice
scsi9 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 3
usb-storage: waiting for device to settle before scanning
usb-storage: device scan complete
scsi 9:0:0:0: Direct-Access ASUS ScreenDUO PQ: 0 ANSI: 2
sd 9:0:0:0: [sdc] Attached SCSI removable disk
usb 7-4: USB disconnect, address 3
usb 7-4: new high speed USB device using ehci_hcd and address 4
usb 7-4: configuration #1 chosen from 1 choice
scsi10 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 4
usb-storage: waiting for device to settle before scanning
usb-storage: device scan complete
scsi 10:0:0:0: Direct-Access ASUS ScreenDUO PQ: 0 ANSI: 2
sd 10:0:0:0: [sdc] Attached SCSI removable disk
[root@...k:~]$ fdisk /dev/sdc
Unable to open /dev/sdc
[root@...k:~]$ lsusb -v
Bus 007 Device 004: ID 1043:3100 iCreate Technologies Corp.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x1043 iCreate Technologies Corp.
idProduct 0x3100
bcdDevice 0.01
iManufacturer 16 ASUS
iProduct 32 ScreenDUO
iSerial 96
bNumConfigurations 1
OTG Descriptor:
bLength 3
bDescriptorType 9
bmAttributes 0x03
SRP (Session Request Protocol)
HNP (Host Negotiation Protocol)
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 35
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 48 CONFIG STRING
bmAttributes 0xc0
Self Powered
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 8 Mass Storage
bInterfaceSubClass 6 SCSI
bInterfaceProtocol 80 Bulk (Zip)
iInterface 64 INTERFACE STRING
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0001
Self Powered
etc.
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