HTC Internet sharing and linux (gentoo)

As previous mentioned, I have a HTC Tattoo, and now that I've gotten familiar to it, I really like it.

Now, on topic:

The HTC Tattoo offers a "Internet sharing" option when it is connected to a computer via USB.

The driver installation on Windows sucks (at least on Danish windows installs - as it fails without installing the drivers), however, under linux, all you need is a couple a modules, and you're ready to go.

Here's the dmesg output when I connect the phone:

[101272.454938] hub 1-6:1.0: state 7 ports 4 chg 0000 evt 0002

[101272.455227] hub 1-6:1.0: port 1, status 0101, change 0001, 12 Mb/s

[101272.559111] hub 1-6:1.0: debounce: port 1: total 100ms stable 100ms status 0x101

[101272.570240] hub 1-6:1.0: port 1 not reset yet, waiting 10ms

[101272.632287] usb 1-6.1: new high speed USB device using ehci_hcd and address 18

[101272.644235] hub 1-6:1.0: port 1 not reset yet, waiting 10ms

[101272.725235] usb 1-6.1: default language 0x0409

[101272.731235] usb 1-6.1: udev 18, busnum 1, minor = 17

[101272.731241] usb 1-6.1: New USB device found, idVendor=0bb4, idProduct=0c01

[101272.731246] usb 1-6.1: New USB device strings: Mfr=3, Product=2, SerialNumber=1

[101272.731252] usb 1-6.1: Product: Android Phone

[101272.731257] usb 1-6.1: Manufacturer: HTC

[101272.731261] usb 1-6.1: SerialNumber: SH9CVLG00376

[101272.731390] usb 1-6.1: uevent

[101272.731423] usb 1-6.1: usb_probe_device

[101272.731430] usb 1-6.1: configuration #1 chosen from 1 choice

[101272.733488] usb 1-6.1: adding 1-6.1:1.0 (config #1, interface 0)

[101272.735621] usb 1-6.1:1.0: uevent

[101272.735661] usb-storage 1-6.1:1.0: usb_probe_interface

[101272.735672] usb-storage 1-6.1:1.0: usb_probe_interface - got id

[101272.735760] scsi9 : SCSI emulation for USB Mass Storage devices

[101272.735924] drivers/usb/core/inode.c: creating file '018'

[101272.735963] usb-storage: device found at 18

[101272.735966] usb-storage: waiting for device to settle before scanning

[101272.759587] usb 1-6.1: uevent

[101275.271385] hub 1-6:1.0: state 7 ports 4 chg 0000 evt 0002

[101275.271598] hub 1-6:1.0: port 1, status 0101, change 0001, 12 Mb/s

[101275.271605] usb 1-6.1: USB disconnect, address 18

[101275.271610] usb 1-6.1: unregistering device

[101275.271615] usb 1-6.1: usb_disable_device nuking all URBs

[101275.271624] usb 1-6.1: unregistering interface 1-6.1:1.0

[101275.274280] usb 1-6.1:1.0: uevent

[101275.274530] usb 1-6.1: uevent

[101275.379244] hub 1-6:1.0: debounce: port 1: total 100ms stable 100ms status 0x101

[101275.390236] hub 1-6:1.0: port 1 not reset yet, waiting 10ms

[101275.452284] usb 1-6.1: new high speed USB device using ehci_hcd and address 19

[101275.464233] hub 1-6:1.0: port 1 not reset yet, waiting 10ms

[101275.543241] usb 1-6.1: skipped 4 descriptors after interface

[101275.545238] usb 1-6.1: default language 0x0409

[101275.551238] usb 1-6.1: udev 19, busnum 1, minor = 18

[101275.551243] usb 1-6.1: New USB device found, idVendor=0bb4, idProduct=0ffe

[101275.551249] usb 1-6.1: New USB device strings: Mfr=3, Product=2, SerialNumber=1

[101275.551255] usb 1-6.1: Product: Android Phone

[101275.551259] usb 1-6.1: Manufacturer: HTC

[101275.551263] usb 1-6.1: SerialNumber: SH9CVLG00376

[101275.551383] usb 1-6.1: uevent

[101275.551418] usb 1-6.1: usb_probe_device

[101275.551425] usb 1-6.1: configuration #1 chosen from 1 choice

[101275.553481] usb 1-6.1: adding 1-6.1:1.0 (config #1, interface 0)

[101275.553898] usb 1-6.1: uevent

[101275.555614] usb 1-6.1:1.0: uevent

[101275.555660] usbserial_generic 1-6.1:1.0: usb_probe_interface

[101275.555666] usbserial_generic 1-6.1:1.0: usb_probe_interface - got id

[101275.555687] rndis_host 1-6.1:1.0: usb_probe_interface

[101275.555692] rndis_host 1-6.1:1.0: usb_probe_interface - got id

[101275.569291] usb0: register 'rndis_host' at usb-0000:00:1d.7-6.1, RNDIS device, fa:6a:94:9d:b9:49

[101275.569324] usb 1-6.1: adding 1-6.1:1.1 (config #1, interface 1)

[101275.570622] usb 1-6.1:1.1: uevent

[101275.570691] drivers/usb/core/inode.c: creating file '019'

[101276.342616] usb 1-6.1: link qh32-0001/f6435900 start 11 [2/0 us]

and lsusb has this to say:

Bus 001 Device 019: ID 0bb4:0ffe High Tech Computer Corp.

Device Descriptor:

bLength 18

bDescriptorType 1

bcdUSB 2.00

bDeviceClass 2 Communications

bDeviceSubClass 0

bDeviceProtocol 0

bMaxPacketSize0 64

idVendor 0x0bb4 High Tech Computer Corp.

idProduct 0x0ffe

bcdDevice 1.00

iManufacturer 3 HTC

iProduct 2 Android Phone

iSerial 1 SH9CVLG00376

bNumConfigurations 1

Configuration Descriptor:

bLength 9

bDescriptorType 2

wTotalLength 67

bNumInterfaces 2

bConfigurationValue 1

iConfiguration 0

bmAttributes 0x80

(Bus Powered)

MaxPower 256mA

Interface Descriptor:

bLength 9

bDescriptorType 4

bInterfaceNumber 0

bAlternateSetting 0

bNumEndpoints 1

bInterfaceClass 2 Communications

bInterfaceSubClass 2 Abstract (modem)

bInterfaceProtocol 255 Vendor Specific (MSFT RNDIS?)

iInterface 6 HTC Ethernet Sharing

CDC Header:

bcdCDC 1.10

CDC Call Management:

bmCapabilities 0x00

bDataInterface 1

CDC ACM:

bmCapabilities 0x00

CDC Union:

bMasterInterface 0

bSlaveInterface 1

Endpoint Descriptor:

bLength 7

bDescriptorType 5

bEndpointAddress 0x83 EP 3 IN

bmAttributes 3

Transfer Type Interrupt

Synch Type None

Usage Type Data

wMaxPacketSize 0x0040 1x 64 bytes

bInterval 9

Interface Descriptor:

bLength 9

bDescriptorType 4

bInterfaceNumber 1

bAlternateSetting 0

bNumEndpoints 2

bInterfaceClass 10 CDC Data

bInterfaceSubClass 0 Unused

bInterfaceProtocol 0

iInterface 6 HTC Ethernet Sharing

Endpoint Descriptor:

bLength 7

bDescriptorType 5

bEndpointAddress 0x03 EP 3 OUT

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 0x84 EP 4 IN

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: 0x0000

(Bus Powered)

For this to work, I have enabled the following modules in my kernel:

rndis_host

cdc_ether (with rndis support)

usbnet

These are found under:

• Device Drivers --->
• Network device support --->
• USB Network Adapters --->
• Multi-purpose USB Networking Framework
• Host for RNDIS and ActiveSync devices (EXPERIMENTAL)
• USB support --->
• USB Gadget Support --->
• Ethernet Gadget (with CDC Ethernet support)
• [*] RNDIS support

Next, you'll just need to create a symlink from net.lo to net.usb0 in /etc/init.d/

cd /etc/init.d/

ln -s net.lo net.usb0

This will get the device working under gentoo at least.