Does --lsusb record USB device ordinance?
#666
Answered
by
kellyjonbrazil
RokeJulianLockhart
asked this question in
Q&A
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I want to know whether Footnotes |
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Answered by
kellyjonbrazil
Sep 21, 2025
Replies: 1 comment 2 replies
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Hi there! No, the https://kellyjonbrazil.github.io/jc/docs/parsers/lsusb Thanks |
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2 replies
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@kellyjonbrazil, and, to confirm, that means that the hierarchy of the devices isn't retained? 1 Footnotes |
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Device hierarchy is not maintained by [
{
"bus": "001",
"device": "003",
"id": "2c7c:0125",
"description": "Quectel Wireless Solutions Co., Ltd. EC25 LTE modem",
"device_descriptor": {
"bLength": {
"value": "18"
},
"bDescriptorType": {
"value": "1"
},
"bcdUSB": {
"value": "2.00"
},
"bDeviceClass": {
"value": "239",
"description": "Miscellaneous Device"
},
"bDeviceSubClass": {
"value": "2"
},
"bDeviceProtocol": {
"value": "1",
"description": "Interface Association"
},
"bMaxPacketSize0": {
"value": "64"
},
"idVendor": {
"value": "0x2c7c",
"description": "Quectel Wireless Solutions Co., Ltd."
},
"idProduct": {
"value": "0x0125",
"description": "EC25 LTE modem"
},
"bcdDevice": {
"value": "3.18"
},
"iManufacturer": {
"value": "1",
"description": "Quectel Incorporated"
},
"iProduct": {
"value": "2",
"description": "LTE Module"
},
"iSerial": {
"value": "0"
},
"bNumConfigurations": {
"value": "1"
},
"configuration_descriptor": {
"bLength": {
"value": "9"
},
"bDescriptorType": {
"value": "2"
},
"wTotalLength": {
"value": "0x0109"
},
"bNumInterfaces": {
"value": "6"
},
"bConfigurationValue": {
"value": "1"
},
"iConfiguration": {
"value": "0"
},
"bmAttributes": {
"value": "0xa0",
"attributes": [
"(Bus Powered)",
"Remote Wakeup"
]
},
"MaxPower": {
"description": "500mA"
},
"interface_association": {
"bLength": {
"value": "8"
},
"bDescriptorType": {
"value": "11"
},
"bFirstInterface": {
"value": "4"
},
"bInterfaceCount": {
"value": "2"
},
"bFunctionClass": {
"value": "2",
"description": "Communications"
},
"bFunctionSubClass": {
"value": "14"
},
"bFunctionProtocol": {
"value": "0"
},
"iFunction": {
"value": "0"
}
},
"interface_descriptors": [
{
"bLength": {
"value": "9"
},
"bDescriptorType": {
"value": "4"
},
"bInterfaceNumber": {
"value": "0"
},
"bAlternateSetting": {
"value": "0"
},
"bNumEndpoints": {
"value": "2"
},
"bInterfaceClass": {
"value": "255",
"description": "Vendor Specific Class"
},
"bInterfaceSubClass": {
"value": "255",
"description": "Vendor Specific Subclass"
},
"bInterfaceProtocol": {
"value": "255",
"description": "Vendor Specific Protocol"
},
"iInterface": {
"value": "0"
},
"endpoint_descriptors": [
{
"bLength": {
"value": "7"
},
"bDescriptorType": {
"value": "5"
},
"bEndpointAddress": {
"value": "0x81",
"description": "EP 1 IN"
},
"bmAttributes": {
"value": "2",
"attributes": [
"Transfer Type Bulk",
"Synch Type None",
"Usage Type Data"
]
},
"wMaxPacketSize": {
"value": "0x0200",
"description": "1x 512 bytes"
},
"bInterval": {
"value": "0"
}
},
{
"bLength": {
"value": "7"
},
"bDescriptorType": {
"value": "5"
},
"bEndpointAddress": {
"value": "0x01",
"description": "EP 1 OUT"
},
"bmAttributes": {
"value": "2",
"attributes": [
"Transfer Type Bulk",
"Synch Type None",
"Usage Type Data"
]
},
"wMaxPacketSize": {
"value": "0x0200",
"description": "1x 512 bytes"
},
"bInterval": {
"value": "0"
}
}
]
},
{
"bLength": {
"value": "9"
},
"bDescriptorType": {
"value": "4"
},
"bInterfaceNumber": {
"value": "1"
},
"bAlternateSetting": {
"value": "0"
},
"bNumEndpoints": {
"value": "3"
},
"bInterfaceClass": {
"value": "255",
"description": "Vendor Specific Class"
},
"bInterfaceSubClass": {
"value": "0"
},
"bInterfaceProtocol": {
"value": "0"
},
"iInterface": {
"value": "0"
},
"** UNRECOGNIZED: 05": {
"value": "24",
"description": "06 00 00"
},
"** UNRECOGNIZED: 04": {
"value": "24",
"description": "02 02"
},
"endpoint_descriptors": [
{
"bLength": {
"value": "7"
},
"bDescriptorType": {
"value": "5"
},
"bEndpointAddress": {
"value": "0x83",
"description": "EP 3 IN"
},
"bmAttributes": {
"value": "3",
"attributes": [
"Transfer Type Interrupt",
"Synch Type None",
"Usage Type Data"
]
},
"wMaxPacketSize": {
"value": "0x000a",
"description": "1x 10 bytes"
},
"bInterval": {
"value": "9"
}
},
{
"bLength": {
"value": "7"
},
"bDescriptorType": {
"value": "5"
},
"bEndpointAddress": {
"value": "0x82",
"description": "EP 2 IN"
},
"bmAttributes": {
"value": "2",
"attributes": [
"Transfer Type Bulk",
"Synch Type None",
"Usage Type Data"
]
},
"wMaxPacketSize": {
"value": "0x0200",
"description": "1x 512 bytes"
},
"bInterval": {
"value": "0"
}
},
{
"bLength": {
"value": "7"
},
"bDescriptorType": {
"value": "5"
},
"bEndpointAddress": {
"value": "0x02",
"description": "EP 2 OUT"
},
"bmAttributes": {
"value": "2",
"attributes": [
"Transfer Type Bulk",
"Synch Type None",
"Usage Type Data"
]
},
"wMaxPacketSize": {
"value": "0x0200",
"description": "1x 512 bytes"
},
"bInterval": {
"value": "0"
}
}
]
},
{
"bLength": {
"value": "9"
},
"bDescriptorType": {
"value": "4"
},
"bInterfaceNumber": {
"value": "2"
},
"bAlternateSetting": {
"value": "0"
},
"bNumEndpoints": {
"value": "3"
},
"bInterfaceClass": {
"value": "255",
"description": "Vendor Specific Class"
},
"bInterfaceSubClass": {
"value": "0"
},
"bInterfaceProtocol": {
"value": "0"
},
"iInterface": {
"value": "0"
},
"** UNRECOGNIZED: 05": {
"value": "24",
"description": "06 00 00"
},
"** UNRECOGNIZED: 04": {
"value": "24",
"description": "02 02"
},
"endpoint_descriptors": [
{
"bLength": {
"value": "7"
},
"bDescriptorType": {
"value": "5"
},
"bEndpointAddress": {
"value": "0x85",
"description": "EP 5 IN"
},
"bmAttributes": {
"value": "3",
"attributes": [
"Transfer Type Interrupt",
"Synch Type None",
"Usage Type Data"
]
},
"wMaxPacketSize": {
"value": "0x000a",
"description": "1x 10 bytes"
},
"bInterval": {
"value": "9"
}
},
{
"bLength": {
"value": "7"
},
"bDescriptorType": {
"value": "5"
},
"bEndpointAddress": {
"value": "0x84",
"description": "EP 4 IN"
},
"bmAttributes": {
"value": "2",
"attributes": [
"Transfer Type Bulk",
"Synch Type None",
"Usage Type Data"
]
},
"wMaxPacketSize": {
"value": "0x0200",
"description": "1x 512 bytes"
},
"bInterval": {
"value": "0"
}
},
{
"bLength": {
"value": "7"
},
"bDescriptorType": {
"value": "5"
},
"bEndpointAddress": {
"value": "0x03",
"description": "EP 3 OUT"
},
"bmAttributes": {
"value": "2",
"attributes": [
"Transfer Type Bulk",
"Synch Type None",
"Usage Type Data"
]
},
"wMaxPacketSize": {
"value": "0x0200",
"description": "1x 512 bytes"
},
"bInterval": {
"value": "0"
}
}
]
},
{
"bLength": {
"value": "9"
},
"bDescriptorType": {
"value": "4"
},
"bInterfaceNumber": {
"value": "3"
},
"bAlternateSetting": {
"value": "0"
},
"bNumEndpoints": {
"value": "3"
},
"bInterfaceClass": {
"value": "255",
"description": "Vendor Specific Class"
},
"bInterfaceSubClass": {
"value": "0"
},
"bInterfaceProtocol": {
"value": "0"
},
"iInterface": {
"value": "0"
},
"** UNRECOGNIZED: 05": {
"value": "24",
"description": "06 00 00"
},
"** UNRECOGNIZED: 04": {
"value": "24",
"description": "02 02"
},
"endpoint_descriptors": [
{
"bLength": {
"value": "7"
},
"bDescriptorType": {
"value": "5"
},
"bEndpointAddress": {
"value": "0x87",
"description": "EP 7 IN"
},
"bmAttributes": {
"value": "3",
"attributes": [
"Transfer Type Interrupt",
"Synch Type None",
"Usage Type Data"
]
},
"wMaxPacketSize": {
"value": "0x000a",
"description": "1x 10 bytes"
},
"bInterval": {
"value": "9"
}
},
{
"bLength": {
"value": "7"
},
"bDescriptorType": {
"value": "5"
},
"bEndpointAddress": {
"value": "0x86",
"description": "EP 6 IN"
},
"bmAttributes": {
"value": "2",
"attributes": [
"Transfer Type Bulk",
"Synch Type None",
"Usage Type Data"
]
},
"wMaxPacketSize": {
"value": "0x0200",
"description": "1x 512 bytes"
},
"bInterval": {
"value": "0"
}
},
{
"bLength": {
"value": "7"
},
"bDescriptorType": {
"value": "5"
},
"bEndpointAddress": {
"value": "0x04",
"description": "EP 4 OUT"
},
"bmAttributes": {
"value": "2",
"attributes": [
"Transfer Type Bulk",
"Synch Type None",
"Usage Type Data"
]
},
"wMaxPacketSize": {
"value": "0x0200",
"description": "1x 512 bytes"
},
"bInterval": {
"value": "0"
}
}
]
},
{
"bLength": {
"value": "9"
},
"bDescriptorType": {
"value": "4"
},
"bInterfaceNumber": {
"value": "4"
},
"bAlternateSetting": {
"value": "0"
},
"bNumEndpoints": {
"value": "1"
},
"bInterfaceClass": {
"value": "2",
"description": "Communications"
},
"bInterfaceSubClass": {
"value": "14"
},
"bInterfaceProtocol": {
"value": "0"
},
"iInterface": {
"value": "6",
"description": "LTE Module"
},
"cdc_header": {
"bcdCDC": {
"value": "1.10"
}
},
"cdc_union": {
"bMasterInterface": {
"value": "4"
},
"bSlaveInterface": {
"value": "5"
}
},
"cdc_mbim": {
"bcdMBIMVersion": {
"value": "1.00"
},
"wMaxControlMessage": {
"value": "4096"
},
"bNumberFilters": {
"value": "32"
},
"bMaxFilterSize": {
"value": "128"
},
"wMaxSegmentSize": {
"value": "2048"
},
"bmNetworkCapabilit": {
"description": "0x20",
"attributes": [
"8-byte ntb input size"
]
}
},
"cdc_mbim_extended": {
"bcdMBIMExtendedVersion": {
"value": "1.00"
},
"bMaxOutstandingCommandMessages": {
"value": "64"
},
"wMTU": {
"value": "1500"
}
},
"endpoint_descriptors": [
{
"bLength": {
"value": "7"
},
"bDescriptorType": {
"value": "5"
},
"bEndpointAddress": {
"value": "0x89",
"description": "EP 9 IN"
},
"bmAttributes": {
"value": "3",
"attributes": [
"Transfer Type Interrupt",
"Synch Type None",
"Usage Type Data"
]
},
"wMaxPac
C3FB
ketSize": {
"value": "0x0040",
"description": "1x 64 bytes"
},
"bInterval": {
"value": "9"
}
}
]
},
{
"bLength": {
"value": "9"
},
"bDescriptorType": {
"value": "4"
},
"bInterfaceNumber": {
"value": "5"
},
"bAlternateSetting": {
"value": "0"
},
"bNumEndpoints": {
"value": "0"
},
"bInterfaceClass": {
"value": "10",
"description": "CDC Data"
},
"bInterfaceSubClass": {
"value": "0"
},
"bInterfaceProtocol": {
"value": "2"
},
"iInterface": {
"value": "7",
"description": "MBIM Data"
}
},
{
"bLength": {
"value": "9"
},
"bDescriptorType": {
"value": "4"
},
"bInterfaceNumber": {
"value": "5"
},
"bAlternateSetting": {
"value": "1"
},
"bNumEndpoints": {
"value": "2"
},
"bInterfaceClass": {
"value": "10",
"description": "CDC Data"
},
"bInterfaceSubClass": {
"value": "0"
},
"bInterfaceProtocol": {
"value": "2"
},
"iInterface": {
"value": "7",
"description": "MBIM Data"
},
"endpoint_descriptors": [
{
"bLength": {
"value": "7"
},
"bDescriptorType": {
"value": "5"
},
"bEndpointAddress": {
"value": "0x88",
"description": "EP 8 IN"
},
"bmAttributes": {
"value": "2",
"attributes": [
"Transfer Type Bulk",
"Synch Type None",
"Usage Type Data"
]
},
"wMaxPacketSize": {
"value": "0x0200",
"description": "1x 512 bytes"
},
"bInterval": {
"value": "0"
}
},
{
"bLength": {
"value": "7"
},
"bDescriptorType": {
"value": "5"
},
"bEndpointAddress": {
"value": "0x05",
"description": "EP 5 OUT"
},
"bmAttributes": {
"value": "2",
"attributes": [
"Transfer Type Bulk",
"Synch Type None",
"Usage Type Data"
]
},
"wMaxPacketSize": {
"value": "0x0200",
"description": "1x 512 bytes"
},
"bInterval": {
"value": "0"
}
}
]
}
]
}
},
"device_qualifier": {
"bLength": {
"value": "10"
},
"bDescriptorType": {
"value": "6"
},
"bcdUSB": {
"value": "2.00"
},
"bDeviceClass": {
"value": "239",
"description": "Miscellaneous Device"
},
"bDeviceSubClass": {
"value": "2"
},
"bDeviceProtocol": {
"value": "1",
"description": "Interface Association"
},
"bMaxPacketSize0": {
"value": "64"
},
"bNumConfigurations": {
"value": "1"
}
},
"device_status": {
"value": "0x0000",
"description": "(Bus Powered)"
}
}
] |
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Answer selected by
RokeJulianLockhart
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Device hierarchy is not maintained by
jcbut maybe there are some linking fields that can be used to reconstruct hierarchy? Or maybe-tcan be used to find linkages in another process and thejcoutput can be post-processed from there? The JSON output follows the indentation within thelsusboutput. Here is an example:[ { "bus": "001", "device": "003", "id": "2c7c:0125", "description": "Quectel Wireless Solutions Co., Ltd. EC25 LTE modem", "device_descriptor": { "bLength": { "value": "18" }, "bDescriptorType": { "value": "1" }, "bcdUSB": { "value": "2.00" }, "bDeviceClass": { "value": "239", …