From: Marcel <korgull@home.nl>
To: u-boot@lists.denx.de
Subject: [U-Boot] Sam9g45 USB CDC
Date: Tue, 5 Oct 2010 20:42:00 +0200 [thread overview]
Message-ID: <201010052042.01043.korgull@home.nl> (raw)
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)
next reply other threads:[~2010-10-05 18:42 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-05 18:42 Marcel [this message]
2010-10-05 19:54 ` [U-Boot] Sam9g45 USB CDC Marcel
2010-10-09 7:22 ` Remy Bohmer
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