urb->dev = dev; urb->context = uvd; urb->pipe = usb_rcvisocpipe(dev, uvd->video_endp-1); urb->interval = 1; urb->transfer_flags = URB_ISO_ASAP; urb->transfer_buffer = cam->sts_buf[i]; urb->complete = konicawc_isoc_irq; urb->number_of_packets = FRAMES_PER_DESC; urb->transfer_buffer_length = FRAMES_PER_DESC; for (j=0; j However, the cameras do work very well when I run Cheese on my Ubuntu laptop so I don't think it's a hardware problem. The USB core uses the buffer pointed to by the TRansfer_dma variable and not the buffer pointed to by the transfer_buffer variable. USBD_STATUS_STATUS_NOT_MAPPED 0xC0008000 The device bus address is not mapped to system memory.
I loaded zoneminder and apache2 on the RPIi and I noticed there was something like only 25k free memory left.Rich Posts: 67Joined: Thu Jun 14, 2012 2:17 am by FelesMala » For devices, the units are in microframes, which is equivalent to units of 1/8 milliseconds. Use this bit with care, because it can make synchronization issues very difficult to debug. This restriction is to prevent race conditions that occur while the urb is being processed by the USB core.
USBD_STATUS_BAD_START_FRAME 0xC0000A00 The requested start frame is not within a range of USBD_ISO_START_FRAME_RANGE frames of the current USB frame. unsigned int transfer_flagsThis variable can be set to a number of different bit values, depending on what the USB driver wants to happen to the urb. From a terminal window please run: apport-collect 1222850 and then change the status of the bug to 'Confirmed'. For some drivers, the usb_unlink_urb function should be used to tell the USB core to stop an urb.
See the next sections for how to initialize different types of urbs. struct usb_iso_packet_descriptor iso_frame_descValid only for isochronous urbs. Proper grammar and punctuation is a sign of respect, and if you do not show any, you will NOT receive any help (at least not from me). Usb Error Code Note that if a semaphore is being held, this value is not necessary.The current->state is not TASK_RUNNING.
Both my webcams that appear on the list of UVC compatible cameras both give the same fault. Within this function, the USB driver may inspect the urb, free it, or resubmit it for another transfer. (See the Section 13.3.4 for more details about the completion handler.) The usb_complete_t If it is set, the USB core uses the buffer pointed to by the setup_dma variable instead of the setup_packet variable. The state is always TASK_RUNNING unless the driver has changed the current state itself.
In the interval before the hub driver starts disconnectprocessing, devices may receive such fault reports for every request.*************************************************************************** Error codes returned by usbcore-functions ** (expect also other submit and transfer status Linux Error Codes Completion handlers for isochronous URBs should only seeurb->status set to zero, -ENOENT, -ECONNRESET, -ESHUTDOWN, or -EREMOTEIO.Individual frame descriptor status fields may report more status codes.0 Transfer completed successfully-ENOENT URB was synchronously See the following section for more details about this variable. It can take the same return values as the main struct urb structure's status variable. 13.3.2.
USBD_STATUS_REQUEST_FAILED 0x80000500 The hub driver cannot complete a URB request. Posts: 50Joined: Fri Jun 01, 2012 9:20 am by pld7 » Fri Jun 15, 2012 12:34 pm ashbash wrote::) rpi-updated ?Yeah my system's all up to date. Linux Urb See the previous description of the struct urb structure to find the proper units for this value. 188.8.131.52 Bulk urbs Bulk urbs are initialized much like interrupt urbs. Urb Status Codes However, I keep getting errors when attempting to write to the device: $ echo "1" >/dev/wn0 bash: echo: write error: Broken pipe The entire code for the module is here.
The USB core functions use this in order to do DMA buffer transfers. ValueMeaning 00 (USBD_STATUS_SUCCESS) Request was completed with success. 01 (USBD_STATUS_PENDING) Request is pending. 10 or 11 (USBD_STATUS_ERROR) Request was completed with an error. The least significant 28 bits of USB USBD_STATUS_STALL_PID 0xC0000004 The device returned a stall packet identifier (defined for backward compatibility with the USB 1.0) USBD_STATUS_DEV_NOT_RESPONDING 0xC0000005 The device is not responding (defined for backward compatibility with the USB struct urb The fields of the struct urb structure that matter to a USB device driver are: struct usb_device *devPointer to the struct usb_device to which this urb is Usb Urb
This is useful for stopping the urb while in an interrupt handler or when a spinlock is held, as waiting for a urb to fully stop requires the ability for the Downloads and tools Visual Studio Windows SDK Windows Driver Kit Windows Hardware Lab Kit Windows Assessment and Deployment Kit Essentials Dashboard services Debugging tools Driver samples Programs Hardware compatibility program Partner unsigned int pipeThe specific endpoint of the USB device to which this urb is to be sent. Otherwise, the function waits until the urb is completely unlinked and finished before returning.
This is readily fixed by unplugging the camera and allowing some time to elapse before plugging it back in. Linux Kernel Error Codes Posts: 13Joined: Thu May 31, 2012 10:12 am by rleyden » Wed Jun 20, 2012 3:31 am rleyden wrote:However, under raspbian v3, I couldn't get it to work with uvccapture. The available values are: URB_SHORT_NOT_OKWhen set, it specifies that any short read on an IN endpoint that might occur should be treated as an error by the USB core.
It was taken from the konicawc.c kernel driver located in the drivers/usb/media directory in the main kernel source tree. Thanks in advance.  http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11-saucy/ Changed in linux (Ubuntu): importance: Undecided → Medium Tim Gardner (timg-tpi) on 2013-09-10 Changed in linux (Ubuntu Saucy): assignee: nobody → Tim Gardner (timg-tpi) status: Incomplete When I tried (on Arch) i get an error that videodev.h is not found. Linux Errno Posts: 13Joined: Thu May 31, 2012 10:12 am by ashbash » Fri Jun 15, 2012 1:03 pm Great, can u verify the cams somehow?
Because the function usb_submit_urb can be called at any time (including from within an interrupt context), the specification of the mem_flags variable must be correct. If you could run 'uvccapture -v -m' and post the results here it might help someone help you. (Make sure your webcam is listed as /dev/video0 as I mentioned above before This error may instead be reported as -EPROTO or -EILSEQ.-ETIMEDOUT Synchronous USB message functions use this code to indicate timeout expired before the transfer completed, and no other error was reported USBD_STATUS_RESERVED1 0xC000000A Reserved.
USBD_STATUS_NOT_ACCESSED 0xC000000F The USB stack could not access the device (defined for backward compatibility with the USB 1.0). For control endpoints, this buffer is for the data stage of the transfer.