I'm getting timeouts again....

Bus 001 Device 002: ID 03eb:2018 Atmel Corp. at90usbkey sample firmware (CDC ACM)
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 2 Communications
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 16
idVendor 0x03eb Atmel Corp.
idProduct 0x2018 at90usbkey sample firmware (CDC ACM)
bcdDevice 1.00
iManufacturer 1
iProduct 2
iSerial 3
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 67
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
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 1.10
CDC Call Management:
bmCapabilities 0x00
bDataInterface 1
CDC ACM:
bmCapabilities 0x02
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 0x0008 1x 8 bytes
bInterval 255
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 10 CDC Data
bInterfaceSubClass 0 Unused
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 0x0010 1x 16 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 0x0010 1x 16 bytes
bInterval 0
can't get device qualifier: Connection timed out
can't get debug descriptor: Connection timed out
cannot read device status, Connection timed out (110)

dmesg .....

usb 1-1: lsusb timed out on ep0in len=0/255
usb 1-1: usbfs: USBDEVFS_CONTROL failed cmd lsusb rqt 128 rq 6 len 255 ret -110
usb 1-1: lsusb timed out on ep0in len=0/255
usb 1-1: usbfs: USBDEVFS_CONTROL failed cmd lsusb rqt 128 rq 6 len 255 ret -110
usb 1-1: lsusb timed out on ep0in len=0/255
usb 1-1: usbfs: USBDEVFS_CONTROL failed cmd lsusb rqt 128 rq 6 len 255 ret -110
usb 1-1: lsusb timed out on ep0in len=0/10
usb 1-1: usbfs: USBDEVFS_CONTROL failed cmd lsusb rqt 128 rq 6 len 10 ret -110
usb 1-1: lsusb timed out on ep0in len=0/4
usb 1-1: usbfs: USBDEVFS_CONTROL failed cmd lsusb rqt 128 rq 6 len 4 ret -110
usb 1-1: lsusb timed out on ep0in len=0/2
usb 1-1: usbfs: USBDEVFS_CONTROL failed cmd lsusb rqt 128 rq 0 len 2 ret -110
usb 1-1: lsusb timed out on ep0in len=0/255
usb 1-1: usbfs: USBDEVFS_CONTROL failed cmd lsusb rqt 128 rq 6 len 255 ret -110
usb 1-1: lsusb timed out on ep0in len=0/255
usb 1-1: usbfs: USBDEVFS_CONTROL failed cmd lsusb rqt 128 rq 6 len 255 ret -110
usb 1-1: lsusb timed out on ep0in len=0/255
usb 1-1: usbfs: USBDEVFS_CONTROL failed cmd lsusb rqt 128 rq 6 len 255 ret -110
usb 1-1: lsusb timed out on ep0in len=0/10
usb 1-1: usbfs: USBDEVFS_CONTROL failed cmd lsusb rqt 128 rq 6 len 10 ret -110
usb 1-1: lsusb timed out on ep0in len=0/4
usb 1-1: usbfs: USBDEVFS_CONTROL failed cmd lsusb rqt 128 rq 6 len 4 ret -110
usb 1-1: lsusb timed out on ep0in len=0/2
usb 1-1: usbfs: USBDEVFS_CONTROL failed cmd lsusb rqt 128 rq 0 len 2 ret -110


hub 1-0:1.0: port 1, status 0101, change 0001, 12 Mb/s
hub 1-0:1.0: debounce: port 1: total 100ms stable 100ms status 0x101
usb 1-1: new full speed USB device using uhci_hcd and address 3
usb 1-1: ep0 maxpacket = 16
usb 1-1: not running at top speed; connect to a high speed hub
usb 1-1: skipped 4 descriptors after interface
usb 1-1: default language 0x0409
usb 1-1: New USB device found, idVendor=03eb, idProduct=2018
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-1: Product: FreakLabs RP AVRUSB Virtual COM Port
usb 1-1: Manufacturer: FreakLabs
usb 1-1: SerialNumber: Beta 0.50
usb 1-1: uevent
usb 1-1: usb_probe_device
usb 1-1: configuration #1 chosen from 1 choice
usb 1-1: adding 1-1:1.0 (config #1, interface 0)

Try using the latest code and see if it still happens. As I mentioned, there have been some bug fixes on the USB stack.

I updated to svn rev 21. Descriptors can list now without a timeout.

I use a git script to put my check-in version into the device ID string. Can you do that for svn? That would make it easier to identify the version on bug reports.

Like this maybe?
iSerial 3 Beta 0.50-r21

Now I'm back to the timeout when I try to open the ttyACM0 device. If I power cycle the device a couple of times it will randomly start working.


cdc_acm 1-1:1.0: usb_probe_interface
cdc_acm 1-1:1.0: usb_probe_interface - got id
cdc_acm 1-1:1.0: This device cannot do calls on its own. It is no modem.
cdc_acm 1-1:1.0: ttyACM0: USB ACM device
usb 1-1: adding 1-1:1.1 (config #1, interface 1)
usb 1-1:1.1: uevent
drivers/usb/core/inode.c: creating file '006'
hub 1-0:1.0: state 7 ports 2 chg 0000 evt 0002
usb 1-1:1.0: uevent
usb 1-1: uevent
uhci_hcd 0000:00:1a.0: reserve dev 6 ep82-INT, period 128, phase 0, 17 us
uhci_hcd 0000:00:1a.0: release dev 6 ep82-INT, period 128, phase 0, 17 us
uhci_hcd 0000:00:1a.0: reserve dev 6 ep82-INT, period 128, phase 0, 17 us
usb 1-1: picocom timed out on ep0out len=0/0
uhci_hcd 0000:00:1a.0: release dev 6 ep82-INT, period 128, phase 0, 17 us
uhci_hcd 0000:00:1a.0: reserve dev 6 ep82-INT, period 128, phase 0, 17 us
usb 1-1: picocom timed out on ep0out len=0/0
uhci_hcd 0000:00:1a.0: release dev 6 ep82-INT, period 128, phase 0, 17 us
jonsmirl@terra:~$


It worked this time...
I unplugged/plugged the device.

nolock is : no
send_cmd is : ascii_xfr -s -v -l10
receive_cmd is : rz -vv

Terminal ready

TEST_AVR: Command not recognized.


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Pretty weird. I'll check it out, but it might take a while. I need to assemble the boards that just came back.

I might have caught a break on this issue. I couldn't reproduce it on my Raven USB sticks but I can see it when I run my code through the JTAG debugger on my new boards. I'll investigate it some more and let you know how it goes.