Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> writes:
> And another one :-)
>
> So the virtual hub needs a vendor/device ID.
>
> What is the policy here ? Can I get one from LF for it ? Or should the
> HW vendor provide one here ? (I'm not sure they have one, I will have
> to ask).
>
> I will provide a way to override it but I need a sane default.
In case you're interested... This is the hub as implemented by the
firmware coming with the Asus ASMB8-iKVM. Looks like the firmware
vendor provides the ID here, so getting one from LF is probably best:
Bus 001 Device 005: ID 046b:ff01 American Megatrends, Inc.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 1 Single TT
bMaxPacketSize0 64
idVendor 0x046b American Megatrends, Inc.
idProduct 0xff01
bcdDevice 1.00
iManufacturer 1 American Megatrends Inc.
iProduct 2 Virtual Hub
iSerial 3 serial
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 4 Self-powered
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 5 7-port Hub
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0001 1x 1 bytes
bInterval 12
Hub Descriptor:
bLength 9
bDescriptorType 41
nNbrPorts 5
wHubCharacteristic 0x0069
Per-port power switching
Per-port overcurrent protection
TT think time 32 FS bits
bPwrOn2PwrGood 50 * 2 milli seconds
bHubContrCurrent 100 milli Ampere
DeviceRemovable 0x00
PortPwrCtrlMask 0xff
Hub Port Status:
Port 1: 0000.0503 highspeed power enable connect
Port 2: 0000.0503 highspeed power enable connect
Port 3: 0000.0503 highspeed power enable connect
Port 4: 0000.0303 lowspeed power enable connect
Port 5: 0000.0100 power
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 0 Full speed (or root) hub
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0001
Self Powered
Bjørn
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