USB経由でPCのシリアルデバイスに接続しようとしていますが、どうしても機能しません。
このデバイスはSTM32ベースのボードです。
私はアーチにいて、私のユーザーはuucpとlockグループにいます。 sudoで試しても問題ありませんが、それでもエラーが発生します。
どのアプリケーションを開こうとしても、I/O エラーが表示されます。
たとえば、
# stty -F /dev/ttyACM1
stty: /dev/ttyACM1: Input/output error
開こうとするたびに、dmesg は次の行をエクスポートします。
[ +13.632050] cdc_acm 1-4:1.0: acm_port_activate - usb_submit_urb(ctrl irq) failed
どのように進むべきかわかりません。助けてもらえますか？
追加情報：
ラップトップで同じことをしようとしたときにうまくいきましたが、ハードウェア以外の違いが何であるかわかりません。ハードウェアは、ほぼ同じ日に同じディストリビューション、同じ設定でインストールされたためです。
lsusb -v -d 1eaf:0004:
Frame 203273: 64 bytes on wire (512 bits), 64 bytes captured (512 bits) on interface usbmon1, id 0
Interface id: 0 (usbmon1)
Interface name: usbmon1
Encapsulation type: USB packets with Linux header and padding (115)
Arrival Time: Apr 24, 2021 23:02:48.009074000 CEST
[Time shift for this packet: 0.000000000 seconds]
Epoch Time: 1619298168.009074000 seconds
[Time delta from previous captured frame: 0.001224000 seconds]
[Time delta from previous displayed frame: 199.923870000 seconds]
[Time since reference or first frame: 5102.916738000 seconds]
Frame Number: 203273
Frame Length: 64 bytes (512 bits)
Capture Length: 64 bytes (512 bits)
[Frame is marked: False]
[Frame is ignored: False]
[Protocols in frame: usb]
USB URB
[Source: host]
[Destination: 1.27.2]
URB id: 0xffff9e5a096db840
URB type: URB_SUBMIT ('S')
URB transfer type: URB_INTERRUPT (0x01)
Endpoint: 0x82, Direction: IN
Device: 27
URB bus id: 1
Device setup request: not relevant ('-')
Data: not present ('<')
URB sec: 1619298168
URB usec: 9074
URB status: Operation now in progress (-EINPROGRESS) (-115)
URB length [bytes]: 64
Data length [bytes]: 0
[Response in: 203274]
[bInterfaceClass: Communications and CDC Control (0x02)]
Unused Setup Header
Interval: 128
Start frame: 0
Copy of Transfer Flags: 0x00000204, No transfer DMA map, Dir IN
Number of ISO descriptors: 0
Bus 001 Device 027: ID 1eaf:0004 Leaflabs Maple serial interface
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 2 Communications
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x1eaf Leaflabs
idProduct 0x0004 Maple serial interface
bcdDevice 2.00
iManufacturer 1 LeafLabs
iProduct 2 Maple
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 0x0043
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xc0
Self Powered
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 2 Communications
bInterfaceSubClass 2 Abstract (modem)
bInterfaceProtocol 1 AT-commands (v.25ter)
iInterface 0
CDC Header:
bcdCDC 10.01
CDC Call Management:
bmCapabilities 0x03
call management
use DataInterface
bDataInterface 1
CDC ACM:
bmCapabilities 0x06
sends break
line coding and serial state
CDC Union:
bMasterInterface 0
bSlaveInterface 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 255
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 10 CDC Data
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 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 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
can't get device qualifier: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
Device Status: 0x0000
(Bus Powered)
dmesg -wH:
[ +2.391790] usb 1-4: new full-speed USB device number 27 using xhci_hcd
[ +0.181105] usb 1-4: New USB device found, idVendor=1eaf, idProduct=0004, bcdDevice= 2.00
[ +0.000004] usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ +0.000002] usb 1-4: Product: Maple
[ +0.000001] usb 1-4: Manufacturer: LeafLabs
[ +0.000370] cdc_acm 1-4:1.0: ttyACM1: USB ACM device
[ +0.000198] usbcore: registered new interface driver cdc_acm
[ +0.000002] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
usbmonとWireshark：
Frame 203273: 64 bytes on wire (512 bits), 64 bytes captured (512 bits) on interface usbmon1, id 0
Interface id: 0 (usbmon1)
Interface name: usbmon1
Encapsulation type: USB packets with Linux header and padding (115)
Arrival Time: Apr 24, 2021 23:02:48.009074000 CEST
[Time shift for this packet: 0.000000000 seconds]
Epoch Time: 1619298168.009074000 seconds
[Time delta from previous captured frame: 0.001224000 seconds]
[Time delta from previous displayed frame: 199.923870000 seconds]
[Time since reference or first frame: 5102.916738000 seconds]
Frame Number: 203273
Frame Length: 64 bytes (512 bits)
Capture Length: 64 bytes (512 bits)
[Frame is marked: False]
[Frame is ignored: False]
[Protocols in frame: usb]
USB URB
[Source: host]
[Destination: 1.27.2]
URB id: 0xffff9e5a096db840
URB type: URB_SUBMIT ('S')
URB transfer type: URB_INTERRUPT (0x01)
Endpoint: 0x82, Direction: IN
Device: 27
URB bus id: 1
Device setup request: not relevant ('-')
Data: not present ('<')
URB sec: 1619298168
URB usec: 9074
URB status: Operation now in progress (-EINPROGRESS) (-115)
URB length [bytes]: 64
Data length [bytes]: 0
[Response in: 203274]
[bInterfaceClass: Communications and CDC Control (0x02)]
Unused Setup Header
Interval: 128
Start frame: 0
Copy of Transfer Flags: 0x00000204, No transfer DMA map, Dir IN
Number of ISO descriptors: 0
Frame 203274: 64 bytes on wire (512 bits), 64 bytes captured (512 bits) on interface usbmon1, id 0
Interface id: 0 (usbmon1)
Interface name: usbmon1
Encapsulation type: USB packets with Linux header and padding (115)
Arrival Time: Apr 24, 2021 23:02:48.009078000 CEST
[Time shift for this packet: 0.000000000 seconds]
Epoch Time: 1619298168.009078000 seconds
[Time delta from previous captured frame: 0.000004000 seconds]
[Time delta from previous displayed frame: 0.000004000 seconds]
[Time since reference or first frame: 5102.916742000 seconds]
Frame Number: 203274
Frame Length: 64 bytes (512 bits)
Capture Length: 64 bytes (512 bits)
[Frame is marked: False]
[Frame is ignored: False]
[Protocols in frame: usb]
USB URB
[Source: 1.27.2]
[Destination: host]
URB id: 0xffff9e5a096db840
URB type: URB_ERROR ('E')
URB transfer type: URB_INTERRUPT (0x01)
Endpoint: 0x82, Direction: IN
Device: 27
URB bus id: 1
Device setup request: not relevant ('-')
Data: not present ('E')
URB sec: 1619298168
URB usec: 9078
URB status: Operation not permitted (-EPERM) (-1)
URB length [bytes]: 0
Data length [bytes]: 0
[Request in: 203273]
[Time from request: 0.000004000 seconds]
[bInterfaceClass: Communications and CDC Control (0x02)]
Unused Setup Header
Interval: 0
Start frame: 0
Copy of Transfer Flags: 0x00000000
Number of ISO descriptors: 0