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Fab Stz fabstz-it at yahoo.frHello
Le mercredi 2 octobre 2019 22:26:17 CEST, vous avez écrit :
> This is weird, I haven't seen this issue before. Which USB host
> controller are you using, which OS and which version of libusb?
This is with debian buster (=stable)
with libusb 1.0 :
libusb-1.0-0:amd64 version 2:1.0.22-2
What do you mean by USB Host Controller ?
I attached a few files
When connected to
rear USB 3.1gen1 : OK
rear USB 3.1gen2 : KO
front USB 2 : KO
front USB 3.1gen1 : KO
according to MB specs (asus PRIME b450M-a:
rear USB3.1 gen1 is controlled by CPU : Athlon200GE
the 3 other are controlled by chipset B450M
> How often does this problem occur?
Quite often. For ex when running welle.io 2.0 beta3 the ferquency gets set
once and never changes again.
A way to get around it, is to call cancel_async before setting the frenquency.
But I have that error also without reading any data. with the sample test code
attached.
Regards
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[36076.696051] usb 1-8: new high-speed USB device number 7 using xhci_hcd
[36076.875854] usb 1-8: New USB device found, idVendor=0bda, idProduct=2838, bcdDevice= 1.00
[36076.875858] usb 1-8: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[36076.875860] usb 1-8: Product: RTL2838UHIDIR
[36076.875861] usb 1-8: Manufacturer: Realtek
[36076.875863] usb 1-8: SerialNumber: 00000001
[36076.893843] usb 1-8: dvb_usb_v2: found a 'Realtek RTL2832U reference design' in warm state
[36077.003944] usb 1-8: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[36077.003954] dvbdev: DVB: registering new adapter (Realtek RTL2832U reference design)
[36077.097576] i2c i2c-8: Added multiplexed i2c bus 9
[36077.097579] rtl2832 8-0010: Realtek RTL2832 successfully attached
[36077.097592] usb 1-8: DVB: registering adapter 0 frontend 0 (Realtek RTL2832 (DVB-T))...
[36077.097674] r820t 9-001a: creating new instance
[36077.110893] r820t 9-001a: Rafael Micro r820t successfully identified
[36077.113479] rtl2832_sdr rtl2832_sdr.0.auto: Registered as swradio0
[36077.113481] rtl2832_sdr rtl2832_sdr.0.auto: Realtek RTL2832 SDR attached
[36077.113483] rtl2832_sdr rtl2832_sdr.0.auto: SDR API is still slightly experimental and functionality changes may follow
[36077.137899] Registered IR keymap rc-empty
[36077.137949] rc rc0: Realtek RTL2832U reference design as /devices/pci0000:00/0000:00:01.2/0000:01:00.0/usb1/1-8/rc/rc0
[36077.137995] input: Realtek RTL2832U reference design as /devices/pci0000:00/0000:00:01.2/0000:01:00.0/usb1/1-8/rc/rc0/input18
[36077.138108] rc rc0: lirc_dev: driver dvb_usb_rtl28xxu registered at minor = 0, raw IR receiver, no transmitter
[36077.138172] usb 1-8: dvb_usb_v2: schedule remote query interval to 200 msecs
[36077.157882] usb 1-8: dvb_usb_v2: 'Realtek RTL2832U reference design' successfully initialized and connected
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Bus 001 Device 007: ID 0bda:2838 Realtek Semiconductor Corp. RTL2838 DVB-T
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x0bda Realtek Semiconductor Corp.
idProduct 0x2838 RTL2838 DVB-T
bcdDevice 1.00
iManufacturer 1 Realtek
iProduct 2 RTL2838UHIDIR
iSerial 3 00000001
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 0x0022
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 4 USB2.0-Bulk&Iso
bmAttributes 0x80
(Bus Powered)
MaxPower 500mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 5 Bulk-In, Interface
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 5 Bulk-In, Interface
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 0
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
bNumConfigurations 2
Device Status: 0x0000
(Bus Powered)
can't get debug descriptor: Resource temporarily unavailable
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/: Bus 06.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/1p, 10000M
/: Bus 05.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/1p, 480M
/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 10000M
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 480M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 10000M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/10p, 480M
|__ Port 8: Dev 7, If 0, Class=Vendor Specific Class, Driver=dvb_usb_rtl28xxu, 480M
|__ Port 8: Dev 7, If 1, Class=Vendor Specific Class, Driver=, 480M
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