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Libusb_interrupt_transfer Error Codes


Returns zero on success and a LIBUSB_ERROR code on failure. Returns 0 on success, LIBUSB_ERROR_NOT_FOUND if the configuration does not exist and a LIBUSB_ERROR code on error. node #3, CPUs: #24 #25 #26 #27 #28 #29 #30 #31 [ 2.393005] .... Change num_digits() to hpa's division-avoiding, cell-phone-typed version which he went at great lengths and pains to submit on a Saturday evening. have a peek here

Returns zero on success and a LIBUSB_ERROR code on failure. The buffer pointed to by name is only zero terminated on success. Thanks Gordon (back from two weeks in Spain which is why the slow response!) Gordon On 26/08/2012, DAFlippers [email protected] wrote: Thanks for input. The only platform so far to have an issue is RPi. http://libusb.sourceforge.net/api-1.0/group__syncio.html

Libusb Error Codes

const struct libusb_pollfd ** libusb_get_pollfds(libusb_context *ctx) Retrive a list of file descriptors that should be polled by your main loop as libusb event sources. This will wake up any thread blocked on libusb_wait_for_event(). timeouttimeout (in millseconds) that this function should wait before giving up due to no response being received.

int libusb_init(libusb_context **ctx) This function initialises libusb. For an unlimited timeout, use value 0. I'm looking for some mathematics that will challenge me as a year 12 student. Libusb Bulk Transfer Example void libusb_set_debug(libusb_context *ctx, int level) Set the debug level to level.

You should also check the transferred parameter for bulk writes. Libusb_error_timeout There are clearly failing SPLIT IN transactions recorded but I didn't find any SPLIT OUT transactions Doesn't help that the GUI is a bit difficult to navigate and very very slow Returns 0 on success, LIBUSB_ERROR_NOT_FOUND if no kernel driver was active, LIBUSB_ERROR_INVALID_PARAM if the interface does not exist, LIBUSB_ERROR_NO_DEVICE if the device has been disconnected and a LIBUSB_ERROR code on failure. Also check transferred when dealing with a timeout error code.

David Collaborator ghollingworth commented Aug 26, 2012 Not sure the traces are particularly useful... Libusb_fill_bulk_transfer When the library is compiled in this way, all messages of all verbosities are always logged. These messages are not intended to being passed to your application user; instead, you should interpret the error codes returned from libusb functions and provide appropriate notification to the user. Note the debug and trace should be for the same transactions, i.e.


USB EVENTS int libusb_try_lock_events(libusb_context *ctx) Try to acquire the event handling lock. http://janaxelson.com/code/generic_hid.c A new session then does not open anymore, nbulk transfers timeout. Libusb Error Codes Addendum II: When comparing the requests made by the windows driver to the one generated by the above code in Wireshark I don't see any difference (same values in URB). Libusb Control Transfer Example Functions intlibusb_control_transfer (libusb_device_handle *dev_handle, uint8_t bmRequestType, uint8_t bRequest, uint16_t wValue, uint16_t wIndex, unsigned char *data, uint16_t wLength, unsigned int timeout) Perform a USB control transfer.

node #2, CPUs: #16 #17 #18 #19 #20 #21 #22 #23 [ 1.796005] .... navigate here Basic Commands for OTAA Join Frequency Settings for EU 868 MHz, Plus Duty Cycle and Avoiding "no_free_ch" Messages Basic Commands for ABP Join Missing Forum - CAN Why is RN2903 dropping Haven't received registration validation E-mail? Functions intlibusb_control_transfer (libusb_device_handle *dev_handle, uint8_t bmRequestType, uint8_t bRequest, uint16_t wValue, uint16_t wIndex, unsigned char *data, uint16_t wLength, unsigned int timeout) Perform a USB control transfer. Libusb_error_no_device

This function returns the number of devices in the list or a LIBUSB_ERROR code. For an unlimited timeout, use value 0. However, unless the library has been compiled with logging disabled, then any application calls to libusb_set_debug(), or the setting of the environmental variable LIBUSB_DEBUG outside of the application, can result in Check This Out Sign in to comment Contact GitHub API Training Shop Blog About © 2016 GitHub, Inc.

I fell I am missing some setting. Libusb_endpoint_in In this case, libusb_set_debug() and the LIBUSB_DEBUG environment variable have no effects. node #15, CPUs: #120 #121 #122 #123 #124 #125 #126 #127 [ 9.679901] x86: Booted up 16 nodes, 128 CPUs and drop useless elements.

for bulk reads, the maximum number of bytes to receive into the data buffer.

David DAFlippers closed this Jul 31, 2013 swarren pushed a commit to swarren/linux-rpi that referenced this issue Nov 22, 2013 Borislav Petkov this contact form void libusb_exit(libusb_context *ctx) Deinitialise libusb.

Returns a NULL-terminated list on success or NULL on failure. When this environment variable is set, the message logging verbosity level is fixed and libusb_set_debug() effectively does nothing. This function does not return NULL. Reload to refresh your session.

The Synchronous and asynchronous device I/O documentation provides some insight into this topic. If the enable argument is non-zero the feature is enabled. paging request at fffffffffffffff6 IP: [] jbd2__journal_start+0x18f/0x290 PGD 200e067 PUD 200f067 PMD 0 Oops: 0000 [#1] SMP Modules linked in: cpufreq_ondemand acpi_cpufreq freq_table mperf coretemp kvm_intel kvm crc32c_intel ghash_clmulni_intel microcode sg You can avoid this with command line options: sdhci-bcm2708.missing_status=0 sdhci-bcm2708.sync_after_dma=0 but it does cause problems with some sdcards.

int libusb_get_max_iso_packet_size(libusb_device *dev, unsigned char endpoint) Returns the packet size multiplied by the packet multiplier on success, LIBUSB_ERROR_NOT_FOUND if the endpoint does not exist and LIBUSB_ERROR_OTHERS on other failure. David DEBUG FROM PROGRAM RUNNING ON RPi Calling usb_interrupt_transfer with weydev->udev: 0x1921cc0 ,ep 0x0003, buffer 03 00 00 00 00 00h ..., Len 0040h Timeout 10ms TX Interrupt transfer returned -7 void libusb_free_ss_endpoint_companion_descriptor(struct libusb_ss_endpoint_companion_descriptor *ep_comp) This function is NULL safe and frees a parsed USB 3.0 endpoint companion descriptor given by ep_comp. This function is non-portable.