Hi all,
I was able to get a vmcore after the crash with kexec.
Here is the bt and lastlog.
Anything else I could provide?
Chris
PID: 0 TASK: ffffffff804b7870 CPU: 0 COMMAND: "swapper"
#0 [ffffffff80624b10] machine_kexec at ffffffff8021c00d
#1 [ffffffff80624bc0] crash_kexec at ffffffff80255dbe
#2 [ffffffff80624c80] do_page_fault at ffffffff803fde21
#3 [ffffffff80624d90] error_exit at ffffffff803fc0fd
[exception RIP: end_unlink_async+34]
RIP: ffffffff8811d20a RSP: ffffffff80624e48 RFLAGS: 00010202
RAX: 0000000000010029 RBX: ffff81007e098178 RCX: 0000000000000000
RDX: 0000000000008028 RSI: ffffffff8811fe7e RDI: 0000000000000080
RBP: 0000000000000000 R8: 0000000000000000 R9: ffffffff8047dc64
R10: ffff8100022ffc48 R11: 0000000000000246 R12: 0000000000000000
R13: ffff81007e098178 R14: ffff81007e098000 R15: 0000000000000000
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
#4 [ffffffff80624e60] ehci_work at ffffffff8811d78b
#5 [ffffffff80624ed0] ehci_irq at ffffffff88120d0f
#6 [ffffffff80624f20] usb_hcd_irq at ffffffff880ded82
#7 [ffffffff80624f30] handle_IRQ_event at ffffffff802603e8
#8 [ffffffff80624f60] handle_fasteoi_irq at ffffffff802618b6
#9 [ffffffff80624f90] do_IRQ at ffffffff8020c136
--- <IRQ stack> ---
#10 [ffffffff805c7e88] ret_from_intr at ffffffff8020a141
[exception RIP: acpi_safe_halt+40]
RIP: ffffffff88003dc6 RSP: ffffffff805c7f30 RFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff81007e6760a8 RCX: ffffffff8047dde4
RDX: 0000000000000007 RSI: 00000000000001c6 RDI: 0000000004000000
RBP: 0000000000000000 R8: 0000000000000002 R9: ffffffff8047dc64
R10: ffff8100022ffc48 R11: 0000000000000246 R12: ffffffff805c7f14
R13: 0000000000001001 R14: ffffffff80332334 R15: 0000000000000000
ORIG_RAX: ffffffffffffff86 CS: 0010 SS: 0018
#11 [ffffffff805c7f30] acpi_processor_idle at ffffffff88003ff9
#12 [ffffffff805c7f70] cpu_idle at ffffffff80208daf
crash>
...
DIGITAL TV REQUEST
DIGITAL TV REQUEST
DIGITAL TV REQUEST
DIGITAL TV REQUEST
Unable to handle kernel NULL pointer dereference at 0000000000000088 RIP:
[<ffffffff8811d20a>] :ehci_hcd:end_unlink_async+0x22/0xed
PGD 46866067 PUD 46867067 PMD 0
Oops: 0002 [1] SMP
last sysfs file: /devices/pci0000:00/0000:00:14.4/0000:06:02.0/rf_kill
CPU 0
Modules linked in: qt1010 mt2060 mt352 zl10353 em2880_dvb dvb_core
em28xx_audio xc3028_tuner tvp5150 tuner em28xx compat_ioctl32 ir_common
videodev v4l2_common v4l1_compat tveeprom appletalk ax25 ipx p8023 eeprom
ircomm_tty ircomm iptable_filter ip_tables ip6_tables x_tables snd_pcm_oss
snd_mixer_oss snd_seq snd_seq_device af_packet cpufreq_conservative
cpufreq_userspace cpufreq_powersave powernow_k8 fuse apparmor loop dm_mod
pcmcia ipw2200 ide_cd tifm_7xx1 tifm_core ieee80211 ieee80211_crypt
firmware_class ohci1394 container dock battery ac yenta_socket rtc_cmos
ieee1394 cdrom snd_atiixp rsrc_nonstatic rtc_core i2c_piix4 snd_atiixp_modem
rtc_lib snd_ac97_codec ac97_bus button pcmcia_core snd_pcm snd_timer tg3 snd
parport_pc fglrx(P) parport soundcore k8temp hwmon serio_raw joydev
snd_page_alloc irda crc_ccitt ehci_hcd ide_disk ohci_hcd usbcore radeonfb
fb_ddc i2c_algo_bit i2c_core edd ext3 mbcache jbd fan atiixp ide_core thermal
processor
Pid: 0, comm: swapper Tainted: P N 2.6.22.13-0.3-default #1
RIP: 0010:[<ffffffff8811d20a>]
[<ffffffff8811d20a>] :ehci_hcd:end_unlink_async+0x22/0xed
RSP: 0018:ffffffff80624e48 EFLAGS: 00010202
RAX: 0000000000010029 RBX: ffff81007e098178 RCX: 0000000000000000
RDX: 0000000000008028 RSI: ffffffff8811fe7e RDI: 0000000000000080
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8047dc64
R10: ffff8100022ffc48 R11: 0000000000000246 R12: 0000000000000000
R13: ffff81007e098178 R14: ffff81007e098000 R15: 0000000000000000
FS: 0000000040800950(0000) GS:ffffffff80500000(0000) knlGS:00000000f7e6e6c0
CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 0000000000000088 CR3: 0000000046865000 CR4: 00000000000006e0
Process swapper (pid: 0, threadinfo ffffffff805c6000, task ffffffff804b7870)
Stack: ffff81007e098000 ffff81007e098178 0000000000000000 ffffffff8811d78b
ffff81007e143120 ffff81007e7bc240 0000024100000800 0000000000000120
0000000000000240 0000000180617800 0000024100000001 ffff81007e098000
Call Trace:
<IRQ> [<ffffffff8811d78b>] :ehci_hcd:ehci_work+0x25/0x6bd
[<ffffffff88120d0f>] :ehci_hcd:ehci_irq+0x15a/0x188
[<ffffffff880ded82>] :usbcore:usb_hcd_irq+0x24/0x52
[<ffffffff802603e8>] handle_IRQ_event+0x25/0x53
[<ffffffff802618b6>] handle_fasteoi_irq+0x94/0xd0
[<ffffffff80208ce4>] default_idle+0x0/0x3d
[<ffffffff8020c136>] do_IRQ+0x6c/0xd6
[<ffffffff88003e4d>] :processor:acpi_processor_idle+0x0/0x48b
[<ffffffff8020a141>] ret_from_intr+0x0/0xa
<EOI> [<ffffffff88003dc6>] :processor:acpi_safe_halt+0x28/0x39
[<ffffffff88003ff9>] :processor:acpi_processor_idle+0x1ac/0x48b
[<ffffffff88003e4d>] :processor:acpi_processor_idle+0x0/0x48b
[<ffffffff80208ce4>] default_idle+0x0/0x3d
[<ffffffff80208daf>] cpu_idle+0x8e/0xb1
[<ffffffff805d077b>] start_kernel+0x2cf/0x2db
[<ffffffff805d0148>] _sinittext+0x148/0x14c
Code: c6 85 88 00 00 00 03 48 c7 45 50 00 00 00 00 e8 a8 95 1d f8
RIP [<ffffffff8811d20a>] :ehci_hcd:end_unlink_async+0x22/0xed
RSP <ffffffff80624e48>
crash>
>On Thursday 06 December 2007 23:00:05 you wrote:
> Hi all,
>
> I recently bought a Terratec Cinergy XS in France.
>
> I tried driver from http://mcentral.de/hg/~mrec/v4l-dvb-experimental
> and followed instructions from here
>
> http://www.techjp.net/suse_103_terratec_cartetv_tnt
>
> I modprobed with and without em28xx device_mode=17.
>
> Scanning in kaffeine starts, but after a while (around 30%) the system
> locks up and the kernel crashes. I use opensuse kernel
> 2.6.22.13-0.3-default.
>
> I tried different Firmware, e.g. from here
> http://www.techjp.net/UserFile/File/articles/OpenSuse103/firmware.tgz.
>
> Any idea what could go wrong or how I could provide more info e.g. kernel
> stack trace?
>
> Chris
>
> -------------------------
>
> Linux video capture interface: v2.00
> em28xx v4l2 driver version 0.0.1 loaded
> em28xx new video device (0ccd:005e): interface 0, class 255
> em28xx: device is attached to a USB 2.0 bus
> em28xx: you're using the experimental/unstable tree from mcentral.de
> em28xx: there's also a stable tree available but which is limited to
> em28xx: linux <=2.6.19.2
> em28xx: it's fine to use this driver but keep in mind that it will move
> em28xx: to http://mcentral.de/hg/~mrec/v4l-dvb-kernel as soon as it's
> em28xx: proved to be stable
> em28xx #0: Alternate settings: 8
> em28xx #0: Alternate setting 0, max size= 0
> em28xx #0: Alternate setting 1, max size= 0
> em28xx #0: Alternate setting 2, max size= 1448
> em28xx #0: Alternate setting 3, max size= 2048
> em28xx #0: Alternate setting 4, max size= 2304
> em28xx #0: Alternate setting 5, max size= 2580
> em28xx #0: Alternate setting 6, max size= 2892
> em28xx #0: Alternate setting 7, max size= 3072
> input: em2880/em2870 remote control as /class/input/input7
> em28xx-input.c: remote control handler attached
> attach_inform: eeprom detected.
> em28xx #0: i2c eeprom 00: 1a eb 67 95 cd 0c 5e 00 d0 12 5c 03 9e 40 de 1c
> em28xx #0: i2c eeprom 10: 6a 34 27 57 46 07 01 00 00 00 00 00 00 00 00 00
> em28xx #0: i2c eeprom 20: 46 00 01 00 f0 10 31 00 b8 00 14 00 5b 1e 00 00
> em28xx #0: i2c eeprom 30: 00 00 20 40 20 6e 02 20 10 01 00 00 00 00 00 00
> em28xx #0: i2c eeprom 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> em28xx #0: i2c eeprom 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> em28xx #0: i2c eeprom 60: 00 00 00 00 00 00 00 00 00 00 34 03 54 00 65 00
> em28xx #0: i2c eeprom 70: 72 00 72 00 61 00 54 00 65 00 63 00 20 00 45 00
> em28xx #0: i2c eeprom 80: 6c 00 65 00 63 00 74 00 72 00 6f 00 6e 00 69 00
> em28xx #0: i2c eeprom 90: 63 00 20 00 47 00 6d 00 62 00 48 00 00 00 40 03
> em28xx #0: i2c eeprom a0: 43 00 69 00 6e 00 65 00 72 00 67 00 79 00 20 00
> em28xx #0: i2c eeprom b0: 48 00 79 00 62 00 72 00 69 00 64 00 20 00 54 00
> em28xx #0: i2c eeprom c0: 20 00 55 00 53 00 42 00 20 00 58 00 53 00 20 00
> em28xx #0: i2c eeprom d0: 28 00 32 00 38 00 38 00 32 00 29 00 00 00 1c 03
> em28xx #0: i2c eeprom e0: 30 00 37 00 30 00 38 00 30 00 32 00 30 00 30 00
> em28xx #0: i2c eeprom f0: 33 00 38 00 34 00 33 00 00 00 00 00 00 00 00 00
> EEPROM ID= 0x9567eb1a
> Vendor/Product ID= 0ccd:005e
> AC97 audio (5 sample rates)
> 500mA max power
> Table at 0x27, strings=0x409e, 0x1cde, 0x346a
> tuner 1-0061: chip found @ 0xc2 (em28xx #0)
> attach inform (default): detected I2C address c2
> /home/christian/v4l-dvb-experimental/v4l/tuner-core.c: setting tuner
> callback tuner 0x61: Configuration acknowledged
> /home/christian/v4l-dvb-experimental/v4l/tuner-core.c: setting tuner
> callback /home/christian/v4l-dvb-experimental/v4l/xc3028-tuner.c: attach
> request! /home/christian/v4l-dvb-experimental/v4l/tuner-core.c: xc3028
> tuner successfully loaded
> attach_inform: tvp5150 detected.
> tvp5150 1-005c: tvp5150am1 detected.
> Loading base firmware: xc3028_init0.i2c.fw
> Loading default analogue TV settings: xc3028_BG_PAL_A2_A.i2c.fw
> xc3028-tuner.c: firmware 2.7
> ANALOG TV REQUEST
> em28xx #0: V4L2 VBI device registered as /dev/vbi0
> em28xx #0: V4L2 device registered as /dev/video0
> em28xx #0: Found Terratec Hybrid XS (em2882)
> usbcore: registered new interface driver em28xx
> em28xx-audio.c: probing for em28x1 non standard usbaudio
> em28xx-audio.c: Copyright (C) 2006 Markus Rechberger
> Em28xx: Initialized (Em28xx Audio Extension) extension
> em2880-dvb.c: DVB Init
> Loading base firmware: xc3028_8MHz_init0.i2c.fw
> Loading specific dtv settings: xc3028_DTV8_2633.i2c.fw
> xc3028-tuner.c: firmware 2.7
> Sending extra call for Digital TV!
> /home/christian/v4l-dvb-experimental/v4l/xc3028-tuner.c: attach request!
> DVB: registering new adapter (em2880 DVB-T)
> DVB: registering frontend 0 (Zarlink ZL10353 DVB-T)...
> Em28xx: Initialized (Em2880 DVB Extension) extension
>
> --------------------
> lsusb -v
>
> Bus 003 Device 003: ID 0ccd:005e TerraTec Electronic GmbH
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 2.00
> bDeviceClass 0 (Defined at Interface level)
> bDeviceSubClass 0
> bDeviceProtocol 0
> bMaxPacketSize0 64
> idVendor 0x0ccd TerraTec Electronic GmbH
> idProduct 0x005e
> bcdDevice 1.10
> iManufacturer 3
> iProduct 1
> iSerial 2
> bNumConfigurations 1
> Configuration Descriptor:
> bLength 9
> bDescriptorType 2
> wTotalLength 305
> bNumInterfaces 1
> bConfigurationValue 1
> iConfiguration 0
> bmAttributes 0x80
> (Bus Powered)
> MaxPower 500mA
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 0
> bNumEndpoints 4
> bInterfaceClass 255 Vendor Specific Class
> bInterfaceSubClass 0
> bInterfaceProtocol 255
> 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 0x0001 1x 1 bytes
> bInterval 11
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x82 EP 2 IN
> bmAttributes 1
> Transfer Type Isochronous
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0000 1x 0 bytes
> bInterval 1
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x83 EP 3 IN
> bmAttributes 1
> Transfer Type Isochronous
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0000 1x 0 bytes
> bInterval 4
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x84 EP 4 IN
> bmAttributes 1
> Transfer Type Isochronous
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0000 1x 0 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 1
> bNumEndpoints 4
> bInterfaceClass 255 Vendor Specific Class
> bInterfaceSubClass 0
> bInterfaceProtocol 255
> 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 0x0001 1x 1 bytes
> bInterval 11
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x82 EP 2 IN
> bmAttributes 1
> Transfer Type Isochronous
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0000 1x 0 bytes
> bInterval 1
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x83 EP 3 IN
> bmAttributes 1
> Transfer Type Isochronous
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x00c4 1x 196 bytes
> bInterval 4
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x84 EP 4 IN
> bmAttributes 1
> Transfer Type Isochronous
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0234 1x 564 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 2
> bNumEndpoints 4
> bInterfaceClass 255 Vendor Specific Class
> bInterfaceSubClass 0
> bInterfaceProtocol 255
> 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 0x0001 1x 1 bytes
> bInterval 11
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x82 EP 2 IN
> bmAttributes 1
> Transfer Type Isochronous
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0ad4 2x 724 bytes
> bInterval 1
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x83 EP 3 IN
> bmAttributes 1
> Transfer Type Isochronous
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x00c4 1x 196 bytes
> bInterval 4
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x84 EP 4 IN
> bmAttributes 1
> Transfer Type Isochronous
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0234 1x 564 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 3
> bNumEndpoints 4
> bInterfaceClass 255 Vendor Specific Class
> bInterfaceSubClass 0
> bInterfaceProtocol 255
> 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 0x0001 1x 1 bytes
> bInterval 11
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x82 EP 2 IN
> bmAttributes 1
> Transfer Type Isochronous
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0c00 2x 0 bytes
> bInterval 1
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x83 EP 3 IN
> bmAttributes 1
> Transfer Type Isochronous
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x00c4 1x 196 bytes
> bInterval 4
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x84 EP 4 IN
> bmAttributes 1
> Transfer Type Isochronous
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0234 1x 564 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 4
> bNumEndpoints 4
> bInterfaceClass 255 Vendor Specific Class
> bInterfaceSubClass 0
> bInterfaceProtocol 255
> 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 0x0001 1x 1 bytes
> bInterval 11
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x82 EP 2 IN
> bmAttributes 1
> Transfer Type Isochronous
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x1300 3x 768 bytes
> bInterval 1
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x83 EP 3 IN
> bmAttributes 1
> Transfer Type Isochronous
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x00c4 1x 196 bytes
> bInterval 4
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x84 EP 4 IN
> bmAttributes 1
> Transfer Type Isochronous
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0234 1x 564 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 5
> bNumEndpoints 4
> bInterfaceClass 255 Vendor Specific Class
> bInterfaceSubClass 0
> bInterfaceProtocol 255
> 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 0x0001 1x 1 bytes
> bInterval 11
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x82 EP 2 IN
> bmAttributes 1
> Transfer Type Isochronous
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x135c 3x 860 bytes
> bInterval 1
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x83 EP 3 IN
> bmAttributes 1
> Transfer Type Isochronous
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x00c4 1x 196 bytes
> bInterval 4
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x84 EP 4 IN
> bmAttributes 1
> Transfer Type Isochronous
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0234 1x 564 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 6
> bNumEndpoints 4
> bInterfaceClass 255 Vendor Specific Class
> bInterfaceSubClass 0
> bInterfaceProtocol 255
> 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 0x0001 1x 1 bytes
> bInterval 11
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x82 EP 2 IN
> bmAttributes 1
> Transfer Type Isochronous
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x13c4 3x 964 bytes
> bInterval 1
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x83 EP 3 IN
> bmAttributes 1
> Transfer Type Isochronous
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x00c4 1x 196 bytes
> bInterval 4
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x84 EP 4 IN
> bmAttributes 1
> Transfer Type Isochronous
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0234 1x 564 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 7
> bNumEndpoints 4
> bInterfaceClass 255 Vendor Specific Class
> bInterfaceSubClass 0
> bInterfaceProtocol 255
> 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 0x0001 1x 1 bytes
> bInterval 11
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x82 EP 2 IN
> bmAttributes 1
> Transfer Type Isochronous
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x1400 3x 0 bytes
> bInterval 1
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x83 EP 3 IN
> bmAttributes 1
> Transfer Type Isochronous
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x00c4 1x 196 bytes
> bInterval 4
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x84 EP 4 IN
> bmAttributes 1
> Transfer Type Isochronous
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0234 1x 564 bytes
> bInterval 1
> can't get device qualifier: Operation not permitted
> can't get debug descriptor: Operation not permitted
> cannot read device status, Operation not permitted (1)
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