Difference between revisions of "GPIB-USB 82357B clone/Info"
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(Created page with "This is the lsusb output on a Linux system. Note that endpoint 2 IN has a max packet size of 511, which is not entirely compiant with the USB standard. When enumerating, the ...") |
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wMaxPacketSize 0x0008 1x 8 bytes | wMaxPacketSize 0x0008 1x 8 bytes | ||
bInterval 1 | bInterval 1 | ||
Device Qualifier (for other device speed): | Device Qualifier (for other device speed): | ||
bLength 10 | bLength 10 | ||
Revision as of 13:50, 21 May 2012
This is the lsusb output on a Linux system.
Note that endpoint 2 IN has a max packet size of 511, which is not entirely compiant with the USB standard. When enumerating, the Linux kernel warns about this:
config 1 interface 0 altsetting 0 bulk endpoint 0x82 has invalid maxpacket 511
$ lsusb -v -d 0957:0718
Bus 001 Device 019: ID 0957:0718 Agilent Technologies, Inc.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x0957 Agilent Technologies, Inc.
idProduct 0x0718
bcdDevice 0.00
iManufacturer 1 AGILENT Technologies, Inc.
iProduct 2 H82357 ()
iSerial 5 8235720155
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 39
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 3 HIGHSPEED
bmAttributes 0x80
(Bus Powered)
MaxPower 500mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 0 (Defined at Interface level)
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x01ff 1x 511 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x06 EP 6 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 0x88 EP 8 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 1
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: 0x0002
(Bus Powered)
Remote Wakeup Enabled