Device cables/Info
Multimeters
UNI-T UT-D04
How to get a proper lsusb:
As documented by Ralf Burger the UT-D04 USBHID-to-serial cable (at least the one with WCH CH9325 chip) that comes with the UT61D multimeter has some issues on Linux. Apparently you need to put it into (auto)suspend first, before you can properly use it.
Here's a script (written by Ralf Burger) which you can run before using the chip and/or doing an lsusb:
$ cat suspend.HE2325U.sh #!/bin/bash for dat in /sys/bus/usb/devices/*; do if test -e $dat/manufacturer; then grep "WCH.CN" $dat/manufacturer > /dev/null && echo auto > ${dat}/power/level && echo 0 > ${dat}/power/autosuspend fi done
lsusb:
This is the lsusb ouput on Linux:
$ lsusb -vvv Bus 003 Device 023: ID 1a86:e008 QinHeng Electronics HID-based serial adapater Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x1a86 QinHeng Electronics idProduct 0xe008 HID-based serial adapater bcdDevice 11.00 iManufacturer 1 WCH.CN � iProduct 2 USB to Serial iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 41 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 4 bmAttributes 0x80 (Bus Powered) MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 3 Human Interface Device bInterfaceSubClass 0 No Subclass bInterfaceProtocol 0 None iInterface 0 HID Device Descriptor: bLength 9 bDescriptorType 33 bcdHID 1.00 bCountryCode 0 Not supported bNumDescriptors 1 bDescriptorType 34 Report wDescriptorLength 37 Report Descriptor: (length is 37) Item(Global): Usage Page, data= [ 0xa0 0xff ] 65440 (null) Item(Local ): Usage, data= [ 0x01 ] 1 (null) Item(Main ): Collection, data= [ 0x01 ] 1 Application Item(Local ): Usage, data= [ 0x01 ] 1 (null) Item(Global): Logical Minimum, data= [ 0x00 ] 0 Item(Global): Logical Maximum, data= [ 0xff 0x00 ] 255 Item(Global): Report Size, data= [ 0x08 ] 8 Item(Global): Report Count, data= [ 0x08 ] 8 Item(Main ): Input, data= [ 0x02 ] 2 Data Variable Absolute No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Local ): Usage, data= [ 0x02 ] 2 (null) Item(Global): Report Size, data= [ 0x08 ] 8 Item(Global): Report Count, data= [ 0x08 ] 8 Item(Main ): Output, data= [ 0x02 ] 2 Data Variable Absolute No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Local ): Usage, data= [ 0x03 ] 3 (null) Item(Global): Report Size, data= [ 0x08 ] 8 Item(Global): Report Count, data= [ 0x05 ] 5 Item(Main ): Feature, data= [ 0x02 ] 2 Data Variable Absolute No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Main ): End Collection, data=none Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0008 1x 8 bytes bInterval 5 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0008 1x 8 bytes bInterval 5 Device Status: 0x0000 (Bus Powered)
lsusb of slightly different cables:
There is another cable version apparently which also has the USB VID/PID 1a86:e008 ("QinHeng Electronics HID-based serial adapater"), but with slightly different lsusb output. Both cables work fine with the same code, it's unclear what the differences are (or whether they relate to the chip/hardware or to some kind of firmware or ROM).
- bcdDevice 12.00 - iManufacturer 1 WCH.CN ^R + bcdDevice 11.00 + iManufacturer 1 WCH.CN ^Q
here the USB VID/PID are the same, but some details are different, and it advertises itself as self-powered, which it isn't.
Bus 001 Device 040: ID 1a86:e008 QinHeng Electronics HID-based serial adapater Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x1a86 QinHeng Electronics idProduct 0xe008 HID-based serial adapater bcdDevice 12.00 iManufacturer 1 (error) iProduct 2 (error) iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 41 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 4 (error) bmAttributes 0x80 (Bus Powered) MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 3 Human Interface Device bInterfaceSubClass 0 No Subclass bInterfaceProtocol 0 None iInterface 0 HID Device Descriptor: bLength 9 bDescriptorType 33 bcdHID 1.00 bCountryCode 0 Not supported bNumDescriptors 1 bDescriptorType 34 Report wDescriptorLength 37 Report Descriptors: ** UNAVAILABLE ** Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0008 1x 8 bytes bInterval 5 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0008 1x 8 bytes bInterval 5 Device Status: 0x0001 Self Powered
usbhid-dump:
$ usbhid-dump 003:009:000:DESCRIPTOR 1347198370.436452 06 A0 FF 09 01 A1 01 09 01 15 00 26 FF 00 75 08 95 08 81 02 09 02 75 08 95 08 91 02 09 03 75 08 95 05 B1 02 C0
Simple USB Logger (Windows):
This is a screenshot of the decoded HID data, using the Simple USB Logger Windows tool.
V&A VA4000
Old version: Sunplus SPCP825
lsusb:
$ lsusb -vvv Bus 005 Device 069: ID 04fc:0201 Sunplus Technology Co., Ltd Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x04fc Sunplus Technology Co., Ltd idProduct 0x0201 bcdDevice 1.00 iManufacturer 0 iProduct 2 RS232C to USB Adapter iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 32 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 0 (Defined at Interface level) bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0010 1x 16 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 0x0008 1x 8 bytes bInterval 0 Device Status: 0x0000 (Bus Powered)
New version: Prolific PL2303HX
lsusb:
$ lsusb -vvv Bus 005 Device 098: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x067b Prolific Technology, Inc. idProduct 0x2303 PL2303 Serial Port bcdDevice 3.00 iManufacturer 1 Prolific Technology Inc. iProduct 2 USB-Serial Controller iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 39 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 3 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x000a 1x 10 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Device Status: 0x0000 (Bus Powered)