Mixing
Why does my Report Descriptor is **UNAVAILABLE** in lsusb?
0
I am programming a USB-HID device based on STM32 CubeMX Mouse example.
I made some modifications (interface, endpoints, report descriptor, etc using the CustomHID Class template) and I am currently testing enumeration.
Everything seems to be OK except that the lsusb command fails to dump the report descriptor:
$lsusb
Bus 001 Device 013: ID 0483:5740 STMicroelectronics STM32F407
$sudo lsusb -v -s 001:013
Bus 001 Device 013: ID 0483:5740 STMicroelectronics STM32F407
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.01
bDeviceClass 2 Communications
bDeviceSubClass 2 Abstract (modem)
bDeviceProtocol 0 None
bMaxPacketSize0 64
idVendor 0x0483 STMicroelectronics
idProduct 0x5740 STM32F407
bcdDevice 2.00
iManufacturer 1 TEST-ST
iProduct 2 TEST MY HID
iSerial 3 00000000001A
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 41
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
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 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 36
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 5
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 5
Binary Object Store Descriptor:
bLength 5
bDescriptorType 15
wTotalLength 12
bNumDeviceCaps 1
USB 2.0 Extension Device Capability:
bLength 7
bDescriptorType 16
bDevCapabilityType 2
bmAttributes 0x00000002
Link Power Management (LPM) Supported
Device Status: 0x0001
Self Powered
The only link I've found related to my problem on the web is this, however it lacks some explanations about what is done here...
[EDIT]
I have also tried to debug with HIDAPI:
For some reason, the Report descriptor is not sent when the target is plugged.
However, when I connect then disconnect the target (does not matter if I send a command or not) via HIDAPI, then the Report descriptor is populated in lsusb output:
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 34
Report Descriptor: (length is 34)
Item(Global): Usage Page, data= [ 0xd0 0xf1 ] 61904
(null)
Item(Local ): Usage, data= [ 0x01 ] 1
(null)
Item(Main ): Collection, data= [ 0x01 ] 1
Application
Item(Local ): Usage, data= [ 0x20 ] 32
(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= [ 0x40 ] 64
Item(Main ): Input, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position Non_Volatile Bitfield
Item(Local ): Usage, data= [ 0x21 ] 33
(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= [ 0x40 ] 64
Item(Main ): Output, 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:
Moreover, when I spy with udevadm monitor here is the output:
KERNEL[25465.054769] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2 (usb)
KERNEL[25465.055295] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0 (usb)
KERNEL[25465.056409] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D (hid)
KERNEL[25465.056864] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/usbmisc/hiddev2 (usbmisc)
KERNEL[25465.056944] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D/hidraw/hidraw3 (hidraw)
UDEV [25465.097179] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2 (usb)
UDEV [25465.100961] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0 (usb)
UDEV [25465.104350] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D (hid)
UDEV [25465.106807] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/usbmisc/hiddev2 (usbmisc)
UDEV [25465.108620] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D/hidraw/hidraw3 (hidraw)
And when I connect to the target with HIDAPI:
KERNEL[25560.356084] remove /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/usbmisc/hiddev2 (usbmisc)
KERNEL[25560.356187] remove /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D/hidraw/hidraw3 (hidraw)
KERNEL[25560.356278] remove /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D (hid)
UDEV [25560.359579] remove /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/usbmisc/hiddev2 (usbmisc)
UDEV [25560.360677] remove /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D/hidraw/hidraw3 (hidraw)
UDEV [25560.362515] remove /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D (hid)
There is no more activity when I disconnect. However the Report descriptor only appears in lsusb after HIDAPI is disconnected for the target.
My guess is that something is blocking/missing right after the plug.
The connection with HIDAPI triggers the sending of missing information, but I am not sure why the information is only available once HIDAPI disconnects...
usb stm32 hid hidapi lsusb
asked Nov 22 '18 at 10:49
CoconopCoconop
2,97322041
add a comment |
0
I am programming a USB-HID device based on STM32 CubeMX Mouse example.
I made some modifications (interface, endpoints, report descriptor, etc using the CustomHID Class template) and I am currently testing enumeration.
Everything seems to be OK except that the lsusb command fails to dump the report descriptor:
$lsusb
Bus 001 Device 013: ID 0483:5740 STMicroelectronics STM32F407
$sudo lsusb -v -s 001:013
Bus 001 Device 013: ID 0483:5740 STMicroelectronics STM32F407
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.01
bDeviceClass 2 Communications
bDeviceSubClass 2 Abstract (modem)
bDeviceProtocol 0 None
bMaxPacketSize0 64
idVendor 0x0483 STMicroelectronics
idProduct 0x5740 STM32F407
bcdDevice 2.00
iManufacturer 1 TEST-ST
iProduct 2 TEST MY HID
iSerial 3 00000000001A
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 41
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
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 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 36
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 5
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 5
Binary Object Store Descriptor:
bLength 5
bDescriptorType 15
wTotalLength 12
bNumDeviceCaps 1
USB 2.0 Extension Device Capability:
bLength 7
bDescriptorType 16
bDevCapabilityType 2
bmAttributes 0x00000002
Link Power Management (LPM) Supported
Device Status: 0x0001
Self Powered
The only link I've found related to my problem on the web is this, however it lacks some explanations about what is done here...
[EDIT]
I have also tried to debug with HIDAPI:
For some reason, the Report descriptor is not sent when the target is plugged.
However, when I connect then disconnect the target (does not matter if I send a command or not) via HIDAPI, then the Report descriptor is populated in lsusb output:
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 34
Report Descriptor: (length is 34)
Item(Global): Usage Page, data= [ 0xd0 0xf1 ] 61904
(null)
Item(Local ): Usage, data= [ 0x01 ] 1
(null)
Item(Main ): Collection, data= [ 0x01 ] 1
Application
Item(Local ): Usage, data= [ 0x20 ] 32
(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= [ 0x40 ] 64
Item(Main ): Input, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position Non_Volatile Bitfield
Item(Local ): Usage, data= [ 0x21 ] 33
(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= [ 0x40 ] 64
Item(Main ): Output, 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:
Moreover, when I spy with udevadm monitor here is the output:
KERNEL[25465.054769] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2 (usb)
KERNEL[25465.055295] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0 (usb)
KERNEL[25465.056409] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D (hid)
KERNEL[25465.056864] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/usbmisc/hiddev2 (usbmisc)
KERNEL[25465.056944] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D/hidraw/hidraw3 (hidraw)
UDEV [25465.097179] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2 (usb)
UDEV [25465.100961] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0 (usb)
UDEV [25465.104350] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D (hid)
UDEV [25465.106807] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/usbmisc/hiddev2 (usbmisc)
UDEV [25465.108620] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D/hidraw/hidraw3 (hidraw)
And when I connect to the target with HIDAPI:
KERNEL[25560.356084] remove /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/usbmisc/hiddev2 (usbmisc)
KERNEL[25560.356187] remove /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D/hidraw/hidraw3 (hidraw)
KERNEL[25560.356278] remove /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D (hid)
UDEV [25560.359579] remove /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/usbmisc/hiddev2 (usbmisc)
UDEV [25560.360677] remove /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D/hidraw/hidraw3 (hidraw)
UDEV [25560.362515] remove /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D (hid)
There is no more activity when I disconnect. However the Report descriptor only appears in lsusb after HIDAPI is disconnected for the target.
My guess is that something is blocking/missing right after the plug.
The connection with HIDAPI triggers the sending of missing information, but I am not sure why the information is only available once HIDAPI disconnects...
usb stm32 hid hidapi lsusb
asked Nov 22 '18 at 10:49
CoconopCoconop
2,97322041
add a comment |
0
0
0
I am programming a USB-HID device based on STM32 CubeMX Mouse example.
I made some modifications (interface, endpoints, report descriptor, etc using the CustomHID Class template) and I am currently testing enumeration.
Everything seems to be OK except that the lsusb command fails to dump the report descriptor:
$lsusb
Bus 001 Device 013: ID 0483:5740 STMicroelectronics STM32F407
$sudo lsusb -v -s 001:013
Bus 001 Device 013: ID 0483:5740 STMicroelectronics STM32F407
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.01
bDeviceClass 2 Communications
bDeviceSubClass 2 Abstract (modem)
bDeviceProtocol 0 None
bMaxPacketSize0 64
idVendor 0x0483 STMicroelectronics
idProduct 0x5740 STM32F407
bcdDevice 2.00
iManufacturer 1 TEST-ST
iProduct 2 TEST MY HID
iSerial 3 00000000001A
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 41
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
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 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 36
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 5
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 5
Binary Object Store Descriptor:
bLength 5
bDescriptorType 15
wTotalLength 12
bNumDeviceCaps 1
USB 2.0 Extension Device Capability:
bLength 7
bDescriptorType 16
bDevCapabilityType 2
bmAttributes 0x00000002
Link Power Management (LPM) Supported
Device Status: 0x0001
Self Powered
The only link I've found related to my problem on the web is this, however it lacks some explanations about what is done here...
[EDIT]
I have also tried to debug with HIDAPI:
For some reason, the Report descriptor is not sent when the target is plugged.
However, when I connect then disconnect the target (does not matter if I send a command or not) via HIDAPI, then the Report descriptor is populated in lsusb output:
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 34
Report Descriptor: (length is 34)
Item(Global): Usage Page, data= [ 0xd0 0xf1 ] 61904
(null)
Item(Local ): Usage, data= [ 0x01 ] 1
(null)
Item(Main ): Collection, data= [ 0x01 ] 1
Application
Item(Local ): Usage, data= [ 0x20 ] 32
(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= [ 0x40 ] 64
Item(Main ): Input, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position Non_Volatile Bitfield
Item(Local ): Usage, data= [ 0x21 ] 33
(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= [ 0x40 ] 64
Item(Main ): Output, 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:
Moreover, when I spy with udevadm monitor here is the output:
KERNEL[25465.054769] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2 (usb)
KERNEL[25465.055295] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0 (usb)
KERNEL[25465.056409] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D (hid)
KERNEL[25465.056864] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/usbmisc/hiddev2 (usbmisc)
KERNEL[25465.056944] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D/hidraw/hidraw3 (hidraw)
UDEV [25465.097179] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2 (usb)
UDEV [25465.100961] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0 (usb)
UDEV [25465.104350] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D (hid)
UDEV [25465.106807] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/usbmisc/hiddev2 (usbmisc)
UDEV [25465.108620] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D/hidraw/hidraw3 (hidraw)
And when I connect to the target with HIDAPI:
KERNEL[25560.356084] remove /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/usbmisc/hiddev2 (usbmisc)
KERNEL[25560.356187] remove /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D/hidraw/hidraw3 (hidraw)
KERNEL[25560.356278] remove /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D (hid)
UDEV [25560.359579] remove /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/usbmisc/hiddev2 (usbmisc)
UDEV [25560.360677] remove /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D/hidraw/hidraw3 (hidraw)
UDEV [25560.362515] remove /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D (hid)
There is no more activity when I disconnect. However the Report descriptor only appears in lsusb after HIDAPI is disconnected for the target.
My guess is that something is blocking/missing right after the plug.
The connection with HIDAPI triggers the sending of missing information, but I am not sure why the information is only available once HIDAPI disconnects...
usb stm32 hid hidapi lsusb
asked Nov 22 '18 at 10:49
CoconopCoconop
2,97322041
I am programming a USB-HID device based on STM32 CubeMX Mouse example.
I made some modifications (interface, endpoints, report descriptor, etc using the CustomHID Class template) and I am currently testing enumeration.
Everything seems to be OK except that the lsusb command fails to dump the report descriptor:
$lsusb
Bus 001 Device 013: ID 0483:5740 STMicroelectronics STM32F407
$sudo lsusb -v -s 001:013
Bus 001 Device 013: ID 0483:5740 STMicroelectronics STM32F407
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.01
bDeviceClass 2 Communications
bDeviceSubClass 2 Abstract (modem)
bDeviceProtocol 0 None
bMaxPacketSize0 64
idVendor 0x0483 STMicroelectronics
idProduct 0x5740 STM32F407
bcdDevice 2.00
iManufacturer 1 TEST-ST
iProduct 2 TEST MY HID
iSerial 3 00000000001A
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 41
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
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 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 36
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 5
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 5
Binary Object Store Descriptor:
bLength 5
bDescriptorType 15
wTotalLength 12
bNumDeviceCaps 1
USB 2.0 Extension Device Capability:
bLength 7
bDescriptorType 16
bDevCapabilityType 2
bmAttributes 0x00000002
Link Power Management (LPM) Supported
Device Status: 0x0001
Self Powered
The only link I've found related to my problem on the web is this, however it lacks some explanations about what is done here...
[EDIT]
I have also tried to debug with HIDAPI:
For some reason, the Report descriptor is not sent when the target is plugged.
However, when I connect then disconnect the target (does not matter if I send a command or not) via HIDAPI, then the Report descriptor is populated in lsusb output:
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 34
Report Descriptor: (length is 34)
Item(Global): Usage Page, data= [ 0xd0 0xf1 ] 61904
(null)
Item(Local ): Usage, data= [ 0x01 ] 1
(null)
Item(Main ): Collection, data= [ 0x01 ] 1
Application
Item(Local ): Usage, data= [ 0x20 ] 32
(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= [ 0x40 ] 64
Item(Main ): Input, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position Non_Volatile Bitfield
Item(Local ): Usage, data= [ 0x21 ] 33
(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= [ 0x40 ] 64
Item(Main ): Output, 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:
Moreover, when I spy with udevadm monitor here is the output:
KERNEL[25465.054769] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2 (usb)
KERNEL[25465.055295] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0 (usb)
KERNEL[25465.056409] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D (hid)
KERNEL[25465.056864] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/usbmisc/hiddev2 (usbmisc)
KERNEL[25465.056944] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D/hidraw/hidraw3 (hidraw)
UDEV [25465.097179] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2 (usb)
UDEV [25465.100961] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0 (usb)
UDEV [25465.104350] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D (hid)
UDEV [25465.106807] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/usbmisc/hiddev2 (usbmisc)
UDEV [25465.108620] add /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D/hidraw/hidraw3 (hidraw)
And when I connect to the target with HIDAPI:
KERNEL[25560.356084] remove /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/usbmisc/hiddev2 (usbmisc)
KERNEL[25560.356187] remove /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D/hidraw/hidraw3 (hidraw)
KERNEL[25560.356278] remove /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D (hid)
UDEV [25560.359579] remove /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/usbmisc/hiddev2 (usbmisc)
UDEV [25560.360677] remove /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D/hidraw/hidraw3 (hidraw)
UDEV [25560.362515] remove /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:0483:5740.002D (hid)
There is no more activity when I disconnect. However the Report descriptor only appears in lsusb after HIDAPI is disconnected for the target.
My guess is that something is blocking/missing right after the plug.
The connection with HIDAPI triggers the sending of missing information, but I am not sure why the information is only available once HIDAPI disconnects...
usb stm32 hid hidapi lsusb
usb stm32 hid hidapi lsusb
asked Nov 22 '18 at 10:49
CoconopCoconop
2,97322041
asked Nov 22 '18 at 10:49
CoconopCoconop
2,97322041
edited Nov 28 '18 at 14:52
Coconop
asked Nov 22 '18 at 10:49
CoconopCoconop
2,97322041
asked Nov 22 '18 at 10:49
CoconopCoconop
2,97322041
asked Nov 22 '18 at 10:49
CoconopCoconop
2,97322041
2,97322041
add a comment |
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53429252%2fwhy-does-my-report-descriptor-is-unavailable-in-lsusb%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
draft saved
draft discarded
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53429252%2fwhy-does-my-report-descriptor-is-unavailable-in-lsusb%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
