Hi,
Never mind, I overlooked the string descriptors. The funny thing is that the Linux host just continues where the windows host simply stops communicating with the device.
regards, Marcel
Hi,
It looks like I've got most thing implemented regarding USB CDC for the Sam9g45. I do however have some basic questions.
One of the things is that I don't see any descriptors in Windows. I installed some inf file found on the net for Ethernet RNDIS but maybe that was wrong. Is there any Windows driver available for the Linux CDC interface ?
Second I connected the device to my Linux host and dmesg says looks a bit better :
usb 1-4: USB disconnect, address 39 usb 1-4: new high speed USB device using ehci_hcd and address 40 usb 1-4: New USB device found, idVendor=0525, idProduct=a4a1 usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 usb 1-4: Product: Ethernet Gadget usb 1-4: Manufacturer: Atmel AT91SAM9G45 usb 1-4: configuration #1 chosen from 1 choice
lusb output is shown below. I see the following line : iMacAddress 3 (??) Is this normal or did I perhaps miss something crucial here ?
One thing I notice is that things are rather slow in Linux and probably also the reason why things don't work in windows yet. It takes a couple of seconds for lsusb to show information and my guess is that still something is wrong.
Best regards, Marcel
$lsusb -v -d 0525:a4a1
Bus 001 Device 036: ID 0525:a4a1 Netchip Technology, Inc. Linux-USB Ethernet Gadget Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 2 Communications bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x0525 Netchip Technology, Inc. idProduct 0xa4a1 Linux-USB Ethernet Gadget bcdDevice 3.18 iManufacturer 1 iProduct 2 iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 80 bNumInterfaces 2 bConfigurationValue 1 iConfiguration 7 bmAttributes 0xc0 Self Powered MaxPower 2mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 2 Communications bInterfaceSubClass 6 Ethernet Networking bInterfaceProtocol 0 iInterface 5 CDC Header: bcdCDC 1.10 CDC Union: bMasterInterface 0 bSlaveInterface 1 CDC Ethernet: iMacAddress 3 (??) bmEthernetStatistics 0x00000000 wMaxSegmentSize 1536 wNumberMCFilters 0x0000 bNumberPowerFilters 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0010 1x 16 bytes bInterval 9 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 10 CDC Data bInterfaceSubClass 0 Unused bInterfaceProtocol 0 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 1 bNumEndpoints 2 bInterfaceClass 10 CDC Data bInterfaceSubClass 0 Unused bInterfaceProtocol 0 iInterface 4 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 can't get device qualifier: Connection timed out can't get debug descriptor: Connection timed out cannot read device status, Connection timed out (110) _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot