docs/159898: commit references a PR
dfilter service
dfilter at FreeBSD.ORG
Tue Aug 23 07:40:11 UTC 2011
The following reply was made to PR docs/159898; it has been noted by GNATS.
From: dfilter at FreeBSD.ORG (dfilter service)
To: bug-followup at FreeBSD.org
Cc:
Subject: Re: docs/159898: commit references a PR
Date: Tue, 23 Aug 2011 07:35:33 +0000 (UTC)
Author: hselasky
Date: Tue Aug 23 07:35:21 2011
New Revision: 225102
URL: http://svn.freebsd.org/changeset/base/225102
Log:
MFC r224903, r224917, r225035, r225090, r225091:
- Add missing API function to the LibUSB v1.0 API.
- Update LibUSB v1.0 manual page.
PR: docs/159898
Modified:
stable/8/lib/libusb/Makefile
stable/8/lib/libusb/libusb.3
stable/8/lib/libusb/libusb.h
stable/8/lib/libusb/libusb10.c
Directory Properties:
stable/8/lib/libusb/ (props changed)
stable/8/lib/libusb/usb.h (props changed)
Modified: stable/8/lib/libusb/Makefile
==============================================================================
--- stable/8/lib/libusb/Makefile Tue Aug 23 07:17:37 2011 (r225101)
+++ stable/8/lib/libusb/Makefile Tue Aug 23 07:35:21 2011 (r225102)
@@ -43,6 +43,7 @@ MLINKS += libusb.3 libusb_get_device_lis
MLINKS += libusb.3 libusb_free_device_list.3
MLINKS += libusb.3 libusb_get_bus_number.3
MLINKS += libusb.3 libusb_get_device_address.3
+MLINKS += libusb.3 libusb_get_device_speed.3
MLINKS += libusb.3 libusb_get_max_packet_size.3
MLINKS += libusb.3 libusb_ref_device.3
MLINKS += libusb.3 libusb_unref_device.3
Modified: stable/8/lib/libusb/libusb.3
==============================================================================
--- stable/8/lib/libusb/libusb.3 Tue Aug 23 07:17:37 2011 (r225101)
+++ stable/8/lib/libusb/libusb.3 Tue Aug 23 07:35:21 2011 (r225102)
@@ -26,247 +26,211 @@
.\"
.\" $FreeBSD$
.\"
-.Dd November 18, 2010
+.Dd August 16, 2011
.Dt LIBUSB 3
.Os
.Sh NAME
.Nm libusb
-.
.Nd "USB access library"
-.
-.
.Sh LIBRARY
-.
-.
-USB access library (libusb -lusb)
-.
-.
+USB access library
+.Pq libusb, -lusb
.Sh SYNOPSIS
-.
-.
.In libusb.h
-.
-.
.Sh DESCRIPTION
The
.Nm
library contains interfaces for directly managing a usb device.
The current implementation supports v1.0 of the libusb API.
-.
-.
.Sh LIBRARY INITIALISATION / DEINITIALISATION
-.
.Pp
-.
.Ft int
.Fn libusb_init libusb_context **ctx
-This function initialises libusb. Must be called at the beginning
-of the program. This function returns 0 on success or LIBUSB_ERROR on
+This function initialises libusb.
+It must be called at the beginning
+of the program, before other libusb routines are used.
+This function returns 0 on success or LIBUSB_ERROR on
failure.
-.
.Pp
-.
.Ft void
.Fn libusb_exit "libusb_context *ctx"
-Deinitialise libusb. Must be called at the end of the application.
-.
+Deinitialise libusb.
+Must be called at the end of the application.
+Other libusb routines may not be called after this function.
.Pp
-.
.Ft const char *
.Fn libusb_strerror "int code"
-Get ASCII representation of the error given by the
+Get the ASCII representation of the error given by the
.Fa code
argument.
-.
-.
.Pp
-.
.Ft void
.Fn libusb_set_debug "libusb_context *ctx" "int level"
-Set debug to the
-.Fa level
-level.
-.
+Set the debug level to
+.Fa level .
.Pp
-.
.Ft ssize_t
.Fn libusb_get_device_list "libusb_context *ctx" "libusb_device ***list"
-Fill into
-.Fa list
-the list of usb device available. All the device created by this
-function must be unref and free when you are done with them. This
-function returns the number of devices in list or a LIBUSB_ERROR code.
-.
+Populate
+.Fa list
+with the list of usb devices available, adding a reference to each
+device in the list.
+All the list entries created by this
+function must have their reference counter
+decremented when you are done with them,
+and the list itself must be freed.
+This
+function returns the number of devices in the list or a LIBUSB_ERROR code.
.Pp
-.
.Ft void
.Fn libusb_free_device_list "libusb_device **list" "int unref_devices"
-Free the list of devices discovered by libusb_get_device_list. If
+Free the list of devices discovered by libusb_get_device_list.
+If
.Fa unref_device
-is set to 1 all devices are unref one time.
-.
+is set to 1 all devices in the list have their reference
+counter decremented once.
.Pp
-.
.Ft uint8_t
.Fn libusb_get_bus_number "libusb_device *dev"
Returns the number of the bus contained by the device
.Fa dev.
-.
.Pp
-.
.Ft uint8_t
.Fn libusb_get_device_address "libusb_device *dev"
-Return the device_address contained by the device
+Returns the device_address contained by the device
.Fa dev.
-.
.Pp
-.
+.Ft enum libusb_speed
+.Fn libusb_get_device_speed "libusb_device *dev"
+Returns the wire speed at which the device is connected.
+See the LIBUSB_SPEED_XXX enums for more information.
+LIBUSB_SPEED_UNKNOWN is returned in case of unknown wire speed.
+.Pp
.Ft int
.Fn libusb_get_max_packet_size "libusb_device *dev" "unsigned char endpoint"
-Return the wMaxPacketSize value on success, LIBUSB_ERROR_NOT_FOUND if the
+Returns the wMaxPacketSize value on success, LIBUSB_ERROR_NOT_FOUND if the
endpoint does not exist and LIBUSB_ERROR_OTHERS on other failure.
-.
.Pp
-.
.Ft libusb_device *
.Fn libusb_ref_device "libusb_device *dev"
Increment the reference counter of the device
.Fa dev.
-.
.Pp
-.
.Ft void
.Fn libusb_unref_device "libusb_device *dev"
Decrement the reference counter of the device
.Fa dev.
-.
.Pp
-.
.Ft int
.Fn libusb_open "libusb_device *dev" "libusb_device_handle **devh"
-Open a device and obtain a device_handle. Return 0 on success,
-LIBUSB_ERROR_NO_MEM on memory allocation problem, LIBUSB_ERROR_ACCESS
-on permission problem, LIBUSB_ERROR_NO_DEVICE if the device has been
-disconnected and a LIBUSB_ERROR code on error.
-.
+Open a device and obtain a device_handle.
+Returns 0 on success,
+LIBUSB_ERROR_NO_MEM on memory allocation problems, LIBUSB_ERROR_ACCESS
+on permissions problems, LIBUSB_ERROR_NO_DEVICE if the device has been
+disconnected and a LIBUSB_ERROR code on other errors.
.Pp
-.
.Ft libusb_device_handle *
.Fn libusb_open_device_with_vid_pid "libusb_context *ctx" "uint16_t vid" "uint16_t pid"
-Convenience function to open a device with is
-.Fa vid
-and
+A convenience function to open a device by vendor and product IDs
+.Fa vid
+and
.Fa pid.
-Return NULL on error.
-.
+Returns NULL on error.
.Pp
-.
.Ft void
.Fn libusb_close "libusb_device_handle *devh"
Close a device handle.
-.
.Pp
-.
.Ft libusb_device *
-.Fn libusb_get_device(libusb_device_handle *devh)
-Get the device contained by devh. Return NULL on error.
-.
+.Fn libusb_get_device "libusb_device_handle *devh"
+Get the device contained by devh.
+Returns NULL on error.
.Pp
-.
.Ft int
.Fn libusb_get_configuration "libusb_device_handle *devh" "int *config"
-Return the bConfiguration value of the current configuration. return 0
-on success, LIBUSB_ERROR_NO_DEVICE if the device has been disconnected
+Returns the bConfiguration value of the current configuration.
+Returns 0
+on success, LIBUSB_ERROR_NO_DEVICE if the device has been disconnected
and a LIBUSB_ERROR code on error.
-.
.Pp
-.
.Ft int
.Fn libusb_set_configuration "libusb_device_handle *devh" "int config"
-Set the active configuration
+Set the active configuration to
.Fa config
for the device contained by
.Fa devh.
-This function return 0 on success, LIBUSB_ERROR_NOT_FOUND if the requested
-configuration does not exist, LIBUSB_ERROR_BUSY if the interfaces are currently
-claimed, LIBUSB_ERROR_NO_DEVICE if the device has been disconnected and a
+This function returns 0 on success, LIBUSB_ERROR_NOT_FOUND if the requested
+configuration does not exist, LIBUSB_ERROR_BUSY if the interfaces are currently
+claimed, LIBUSB_ERROR_NO_DEVICE if the device has been disconnected and a
LIBUSB_ERROR code on failure.
-.
.Pp
-.
.Ft int
.Fn libusb_claim_interface "libusb_device_handle *devh" "int interface_number"
Claim an interface in a given libusb_handle
.Fa devh.
-This is a non-blocking function. It return 0 success, LIBUSB_ERROR_NOT_FOUND
-if the requested interface does not exist, LIBUSB_ERROR_BUSY if a program or
-driver has claimed the interface, LIBUSB_ERROR_NO_DEVICE if the device has
+This is a non-blocking function.
+It returns 0 on success, LIBUSB_ERROR_NOT_FOUND
+if the requested interface does not exist, LIBUSB_ERROR_BUSY if a program or
+driver has claimed the interface, LIBUSB_ERROR_NO_DEVICE if the device has
been disconnected and a LIBUSB_ERROR code on failure.
-.
.Pp
-.
.Ft int
.Fn libusb_release_interface "libusb_device_handle *devh" "int interface_number"
-This function release an interface. All the claimed interface must be released
-before closing a device. Returns 0 on success, LIBUSB_ERROR_NOT_FOUND if the
-interface was not claimed, LIBUSB_ERROR_NO_DEVICE if the device has been
+This function releases an interface.
+All the claimed interfaces on a device must be released
+before closing the device.
+Returns 0 on success, LIBUSB_ERROR_NOT_FOUND if the
+interface was not claimed, LIBUSB_ERROR_NO_DEVICE if the device has been
disconnected and LIBUSB_ERROR on failure.
-.
.Pp
-.
.Ft int
.Fn libusb_set_interface_alt_setting "libusb_device_handle *dev" "int interface_number" "int alternate_setting"
-Activate an alternate setting for an interface. Returns 0 on success,
-LIBUSB_ERROR_NOT_FOUND if the interface was not claimed or the requested
-setting does not exist, LIBUSB_ERROR_NO_DEVICE if the device has been
-disconnected and LIBUSB_ERROR code on failure.
-.
+Activate an alternate setting for an interface.
+Returns 0 on success,
+LIBUSB_ERROR_NOT_FOUND if the interface was not claimed or the requested
+setting does not exist, LIBUSB_ERROR_NO_DEVICE if the device has been
+disconnected and a LIBUSB_ERROR code on failure.
.Pp
-.
.Ft int
.Fn libusb_clear_halt "libusb_device_handle *devh" "unsigned char endpoint"
-Clear an halt/stall for a endpoint. Returns 0 on success, LIBUSB_ERROR_NOT_FOUND
-if the endpoint does not exist, LIBUSB_ERROR_NO_DEVICE if the device has been
+Clear an halt/stall for a endpoint.
+Returns 0 on success, LIBUSB_ERROR_NOT_FOUND
+if the endpoint does not exist, LIBUSB_ERROR_NO_DEVICE if the device has been
disconnected and a LIBUSB_ERROR code on failure.
-.
.Pp
-.
.Ft int
.Fn libusb_reset_device "libusb_device_handle *devh"
-Perform an USB port reset for an usb device. Returns 0 on success,
+Perform an USB port reset for an usb device.
+Returns 0 on success,
LIBUSB_ERROR_NOT_FOUND if re-enumeration is required or if the device has
been disconnected and a LIBUSB_ERROR code on failure.
-.
.Pp
-.
.Ft int
.Fn libusb_check_connected "libusb_device_handle *devh"
-Test if USB device is still connected. Returns 0 on success,
-LIBUSB_ERROR_NO_DEVICE if has been disconnected and a LIBUSB_ERROR
+Test if the USB device is still connected.
+Returns 0 on success,
+LIBUSB_ERROR_NO_DEVICE if it has been disconnected and a LIBUSB_ERROR
code on failure.
-.
.Pp
-.
.Ft int
.Fn libusb_kernel_driver_active "libusb_device_handle *devh" "int interface"
-Determine if a driver is active on a interface. Returns 0 if no kernel driver
-is active, returns 1 if a kernel driver is active, returns LIBUSB_ERROR_NO_DEVICE
-if the device has been disconnected and return a LIBUSB_ERROR code on failure.
-.
+Determine if a driver is active on a interface.
+Returns 0 if no kernel driver
+is active, 1 if a kernel driver is active, LIBUSB_ERROR_NO_DEVICE
+if the device has been disconnected and a LIBUSB_ERROR code on failure.
.Pp
-.
.Ft int
.Fn libusb_get_driver "libusb_device_handle *devh" "int interface" "char *name" "int namelen"
or
.Ft int
.Fn libusb_get_driver_np "libusb_device_handle *devh" "int interface" "char *name" "int namelen"
-Gets the name of the driver attached to the given
+Copy the name of the driver attached to the given
.Fa device
and
.Fa interface
-into the buffer given by
+into the buffer
.Fa name
-and
+of length
.Fa namelen .
Returns 0 on success, LIBUSB_ERROR_NOT_FOUND if no kernel driver is attached
to the given interface and LIBUSB_ERROR_INVALID_PARAM if the interface does
@@ -275,239 +239,230 @@ This function is non-portable.
The buffer pointed to by
.Fa name
is only zero terminated on success.
-.
.Pp
-.
.Ft int
.Fn libusb_detach_kernel_driver "libusb_device_handle *devh" "int interface"
or
.Ft int
.Fn libusb_detach_kernel_driver_np "libusb_device_handle *devh" "int interface"
Detach a kernel driver from an interface.
-This is needed to claim an interface required by a kernel driver.
+This is needed to claim an interface already claimed by a kernel driver.
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. This function is non-portable.
-.
+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.
+This function is non-portable.
.Pp
-.
.Ft int
.Fn libusb_attach_kernel_driver "libusb_device_handle *devh" "int interface"
-Re-attach an interface kernel driver previously detached. Returns 0 on success,
-LIBUSB_ERROR_INVALID_PARAM if the interface does not exist, LIBUSB_ERROR_NO_DEVICE
-if the device has been disconnect, LIBUSB_ERROR_BUSY if the driver cannot be
-attached because the interface is claimed by a program or driver and a
+Re-attach an interface kernel driver that was previously detached.
+Returns 0 on success,
+LIBUSB_ERROR_INVALID_PARAM if the interface does not exist,
+LIBUSB_ERROR_NO_DEVICE
+if the device has been disconnected, LIBUSB_ERROR_BUSY if the driver cannot be
+attached because the interface is claimed by a program or driver and a
LIBUSB_ERROR code on failure.
-.
.Pp
-.
.Sh USB DESCRIPTORS
-.
.Pp
-.
.Ft int
.Fn libusb_get_device_descriptor "libusb_device *dev" "libusb_device_descriptor *desc"
Get the USB device descriptor for the device
.Fa dev.
-This is a non-blocking function. Returns 0 on success and a LIBUSB_ERROR code on
+This is a non-blocking function.
+Returns 0 on success and a LIBUSB_ERROR code on
failure.
-.
.Pp
-.Ft int
+.Ft int
.Fn libsub_get_active_config_descriptor "libusb_device *dev" "struct libusb_config_descriptor **config"
-Get the USB configuration descriptor for the active configuration. Returns 0 on
-success, returns LIBUSB_ERROR_NOT_FOUND if the device is in unconfigured state
-and return another LIBUSB_ERROR code on error.
-.
+Get the USB configuration descriptor for the active configuration.
+Returns 0 on
+success, LIBUSB_ERROR_NOT_FOUND if the device is in
+an unconfigured state
+and a LIBUSB_ERROR code on error.
.Pp
-.Ft int
+.Ft int
.Fn libusb_get_config_descriptor "libusb_device *dev" "uint8_t config_index" "libusb_config_descriptor **config"
-Get USB configuration descriptor based on its index
+Get a USB configuration descriptor based on its index
.Fa idx.
-Returns 0 on success, LIBUSB_ERROR_NOT_FOUND if the configuration does not exist
-and returns another LIBUSB_ERROR code on error.
-.
+Returns 0 on success, LIBUSB_ERROR_NOT_FOUND if the configuration does not exist
+and a LIBUSB_ERROR code on error.
.Pp
.Ft int
.Fn libusb_get_config_descriptor_by_value "libusb_device *dev" "uint8 bConfigurationValue" "libusb_config_descriptor **config"
-Get a USB configuration descriptor with a specific bConfigurationValue. This is
-a non-blocking function which does not send request through the device. Returns 0
-on success, LIBUSB_ERROR_NOT_FOUND if the configuration does not exist and another
+Get a USB configuration descriptor with a specific bConfigurationValue.
+This is
+a non-blocking function which does not send a request through the device.
+Returns 0
+on success, LIBUSB_ERROR_NOT_FOUND if the configuration
+does not exist and a
LIBUSB_ERROR code on failure.
-.
.Pp
.Ft void
.Fn libusb_free_config_descriptor "libusb_config_descriptor *config"
Free a configuration descriptor.
-.
.Pp
.Ft int
.Fn libusb_get_string_descriptor_ascii "libusb_device_handle *devh" "uint8_t desc_idx" "unsigned char *data" "int length"
-Retrieve a string descriptor in C style ascii. Returns a number of byte on success
-and a LIBUSB_ERROR code on failure.
-.
+Retrieve a string descriptor in C style ASCII.
+Returns the positive number of bytes in the resulting ASCII string
+on success and a LIBUSB_ERROR code on failure.
.Pp
-.
.Sh USB ASYNCHRONOUS I/O
-.
.Pp
.Ft struct libusb_transfer *
.Fn libusb_alloc_transfer "int iso_packets"
-Allocate a transfer with
-.Fa iso_packets
-numbers of isochronous packet descriptors. Returns NULL on error.
-.
+Allocate a transfer with the number of isochronous packet descriptors
+specified by
+.Fa iso_packets .
+Returns NULL on error.
.Pp
.Ft void
.Fn libusb_free_transfer "struct libusb_transfer *tr"
Free a transfer.
-.
.Pp
.Ft int
.Fn libusb_submit_transfer "struct libusb_transfer *tr"
-This function will submit a transfer and returns immediately. Returns 0 on
-success, LIBUSB_ERROR_NO_DEVICE if the device has been disconnected and
+This function will submit a transfer and returns immediately.
+Returns 0 on success, LIBUSB_ERROR_NO_DEVICE if
+the device has been disconnected and a
LIBUSB_ERROR code on other failure.
-.
.Pp
.Ft int
.Fn libusb_cancel_transfer "struct libusb_transfer *tr"
-This function asynchronously cancel a transfer. Returns 0 on success and
-LIBUSB_ERROR code on failure.
-.
+This function asynchronously cancels a transfer.
+Returns 0 on success and a LIBUSB_ERROR code on failure.
.Pp
.Sh USB SYNCHRONOUS I/O
-.
.Pp
.Ft int
.Fn libusb_control_transfer "libusb_device_handle *devh" "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. Returns the actual number of bytes
-transferred on success in the range from and including zero until and
+Perform a USB control transfer.
+Returns the actual number of bytes
+transferred on success, in the range from and including zero up to and
including
.Fa wLength .
-On error a libusb error code is returned, for example
-LIBUSB_ERROR_TIMEOUT if the transfer timeout, LIBUSB_ERROR_PIPE if the
+On error a LIBUSB_ERROR code is returned, for example
+LIBUSB_ERROR_TIMEOUT if the transfer timed out, LIBUSB_ERROR_PIPE if the
control request was not supported, LIBUSB_ERROR_NO_DEVICE if the
-device has been disconnected or another LIBUSB_ERROR code on other failures.
-The libusb error codes are always negative.
-.
+device has been disconnected and another LIBUSB_ERROR code on other failures.
+The LIBUSB_ERROR codes are all negative.
.Pp
.Ft int
.Fn libusb_bulk_transfer "struct libusb_device_handle *devh" "unsigned char endpoint" "unsigned char *data" "int length" "int *transferred" "unsigned int timeout"
Perform an USB bulk transfer.
A timeout value of zero means no timeout.
The timeout value is given in milliseconds.
-Returns 0 on success, LIBUSB_ERROR_TIMEOUT
-if the transfer timeout, LIBUSB_ERROR_PIPE if the control request was not
-supported, LIBUSB_ERROR_OVERFLOW if the device offered more data,
-LIBUSB_ERROR_NO_DEVICE if the device has been disconnected and
-LIBUSB_ERROR code on other failure.
-.
+Returns 0 on success, LIBUSB_ERROR_TIMEOUT
+if the transfer timed out, LIBUSB_ERROR_PIPE if the control request was not
+supported, LIBUSB_ERROR_OVERFLOW if the device offered more data,
+LIBUSB_ERROR_NO_DEVICE if the device has been disconnected and
+a LIBUSB_ERROR code on other failure.
.Pp
.Ft int
.Fn libusb_interrupt_transfer "struct libusb_device_handle *devh" "unsigned char endpoint" "unsigned char *data" "int length" "int *transferred" "unsigned int timeout"
Perform an USB Interrupt transfer.
A timeout value of zero means no timeout.
The timeout value is given in milliseconds.
-Returns 0 on success, LIBUSB_ERROR_TIMEOUT
-if the transfer timeout, LIBUSB_ERROR_PIPE if the control request was not
-supported, LIBUSB_ERROR_OVERFLOW if the device offered more data,
-LIBUSB_ERROR_NO_DEVICE if the device has been disconnected and
-LIBUSB_ERROR code on other failure.
-.
+Returns 0 on success, LIBUSB_ERROR_TIMEOUT
+if the transfer timed out, LIBUSB_ERROR_PIPE if the control request was not
+supported, LIBUSB_ERROR_OVERFLOW if the device offered more data,
+LIBUSB_ERROR_NO_DEVICE if the device has been disconnected and
+a LIBUSB_ERROR code on other failure.
.Pp
.Sh USB EVENTS
-.
.Pp
.Ft int
.Fn libusb_try_lock_events "libusb_context *ctx"
-Try to acquire the event handling lock. Returns 0 if the lock was obtained and 1
-if not.
-.
+Try to acquire the event handling lock.
+Returns 0 if the lock was obtained and 1 if not.
.Pp
.Ft void
.Fn libusb_lock_events "libusb_context *ctx"
-Acquire the event handling lock. This function is blocking.
-.
+Acquire the event handling lock.
+This function is blocking.
.Pp
.Ft void
.Fn libusb_unlock_events "libusb_context *ctx"
-Release the event handling lock. This will wake up any thread blocked
-on libusb_wait_for_event().
-.
+Release the event handling lock.
+This will wake up any thread blocked
+on
+.B libusb_wait_for_event() .
.Pp
.Ft int
.Fn libusb_event_handling_ok "libusb_context *ctx"
-Determine if it still OK for this thread to be doing event handling. Returns 1
-if event handling can start or continue. Returns 0 if this thread must give up
+Determine if it still OK for this thread to be doing event handling.
+Returns 1
+if event handling can start or continue.
+Returns 0 if this thread must give up
the events lock.
-.
.Pp
.Ft int
.Fn libusb_event_handler_active "libusb_context *ctx"
-Determine if an active thread is handling events. Returns 1 if yes and 0 if there
+Determine if an active thread is handling events.
+Returns 1 if there is a thread handling events and 0 if there
are no threads currently handling events.
-.
.Pp
.Ft void
.Fn libusb_lock_event_waiters "libusb_context *ctx"
-Acquire the event_waiters lock. This lock is designed to be obtained under the
+Acquire the event_waiters lock.
+This lock is designed to be obtained in the
situation where you want to be aware when events are completed, but some other
thread is event handling so calling libusb_handle_events() is not allowed.
-.
.Pp
.Ft void
.Fn libusb_unlock_event_waiters "libusb_context *ctx"
Release the event_waiters lock.
-.
.Pp
-.Ft int
+.Ft int
.Fn libusb_wait_for_event "libusb_context *ctx" "struct timeval *tv"
-Wait for another thread to signal completion of an event. Must be called
-with the event waiters lock held, see libusb_lock_event_waiters(). This will
+Wait for another thread to signal completion of an event.
+Must be called
+with the event waiters lock held, see libusb_lock_event_waiters().
+This will
block until the timeout expires or a transfer completes or a thread releases
-the event handling lock through libusb_unlock_events(). Returns 0 after a
-transfer completes or another thread stops event handling, returns 1 if the
+the event handling lock through libusb_unlock_events().
+Returns 0 after a
+transfer completes or another thread stops event handling, and 1 if the
timeout expired.
-.
.Pp
.Ft int
.Fn libusb_handle_events_timeout "libusb_context *ctx" "struct timeval *tv"
-Handle any pending events by checking if timeouts have expired and by
-checking the set of file descriptors for activity. Returns 0 on success, or a
+Handle any pending events by checking if timeouts have expired and by
+checking the set of file descriptors for activity.
+Returns 0 on success, or a
LIBUSB_ERROR code on failure.
-.
.Pp
.Ft int
.Fn libusb_handle_events "libusb_context *ctx"
-Handle any pending events in blocking mode with a sensible timeout. Returns 0
-on success, returns a LIBUSB_ERROR code on failure.
-.
+Handle any pending events in blocking mode with a sensible timeout.
+Returns 0
+on success and a LIBUSB_ERROR code on failure.
.Pp
.Ft int
.Fn libusb_handle_events_locked "libusb_context *ctx" "struct timeval *tv"
Handle any pending events by polling file desciptors, without checking if
-another threads are already doing so. Must be called with the event lock held.
-.
+another thread is already doing so.
+Must be called with the event lock held.
.Pp
.Ft int
.Fn libusb_get_next_timeout "libusb_context *ctx" "struct timeval *tv"
-Determine the next internal timeout that libusb needs to handle. Returns 0
-if there are no pending timeouts, 1 if a timeout was returned, or LIBUSB_ERROR
+Determine the next internal timeout that libusb needs to handle.
+Returns 0
+if there are no pending timeouts, 1 if a timeout was returned, or a LIBUSB_ERROR
code on failure.
-.
.Pp
.Ft void
.Fn libusb_set_pollfd_notifiers "libusb_context *ctx" "libusb_pollfd_added_cb added_cb" "libusb_pollfd_removed_cb remove_cb" "void *user_data"
Register notification functions for file descriptor additions/removals.
These functions will be invoked for every new or removed file descriptor
that libusb uses as an event source.
-.
.Pp
.Ft const struct libusb_pollfd **
.Fn libusb_get_pollfds "libusb_context *ctx"
-Retrive a list of file descriptors that should be polled by your main loop as
-libusb event sources. Returns a NULL-terminated list on success or NULL on failure.
-.
+Retrive a list of file descriptors that should be polled by your main loop as
+libusb event sources.
+Returns a NULL-terminated list on success or NULL on failure.
.Sh LIBUSB VERSION 0.1 COMPATIBILITY
.Pp
The library is also compliant with LibUSB version 0.1.12.
@@ -544,16 +499,13 @@ The library is also compliant with LibUS
.Fn usb_check_connected
.Fn usb_get_driver_np
.Fn usb_detach_kernel_driver_np
-.
.Sh SEE ALSO
.Xr libusb20 3 ,
.Xr usb 4 ,
.Xr usbconfig 8
.Pp
.Pa http://libusb.sourceforge.net/
-.
.Sh HISTORY
-.
.Nm
support first appeared in
.Fx 8.0 .
Modified: stable/8/lib/libusb/libusb.h
==============================================================================
--- stable/8/lib/libusb/libusb.h Tue Aug 23 07:17:37 2011 (r225101)
+++ stable/8/lib/libusb/libusb.h Tue Aug 23 07:35:21 2011 (r225102)
@@ -151,6 +151,14 @@ enum libusb_error {
LIBUSB_ERROR_OTHER = -99,
};
+enum libusb_speed {
+ LIBUSB_SPEED_UNKNOWN = 0,
+ LIBUSB_SPEED_LOW = 1,
+ LIBUSB_SPEED_FULL = 2,
+ LIBUSB_SPEED_HIGH = 3,
+ LIBUSB_SPEED_SUPER = 4,
+};
+
enum libusb_transfer_status {
LIBUSB_TRANSFER_COMPLETED,
LIBUSB_TRANSFER_ERROR,
@@ -304,6 +312,7 @@ ssize_t libusb_get_device_list(libusb_co
void libusb_free_device_list(libusb_device ** list, int unref_devices);
uint8_t libusb_get_bus_number(libusb_device * dev);
uint8_t libusb_get_device_address(libusb_device * dev);
+enum libusb_speed libusb_get_device_speed(libusb_device * dev);
int libusb_clear_halt(libusb_device_handle *devh, uint8_t endpoint);
int libusb_get_max_packet_size(libusb_device * dev, uint8_t endpoint);
libusb_device *libusb_ref_device(libusb_device * dev);
Modified: stable/8/lib/libusb/libusb10.c
==============================================================================
--- stable/8/lib/libusb/libusb10.c Tue Aug 23 07:17:37 2011 (r225101)
+++ stable/8/lib/libusb/libusb10.c Tue Aug 23 07:35:21 2011 (r225102)
@@ -272,6 +272,27 @@ libusb_get_device_address(libusb_device
return (libusb20_dev_get_address(dev->os_priv));
}
+enum libusb_speed
+libusb_get_device_speed(libusb_device *dev)
+{
+ if (dev == NULL)
+ return (LIBUSB_SPEED_UNKNOWN); /* should not happen */
+
+ switch (libusb20_dev_get_speed(dev->os_priv)) {
+ case LIBUSB20_SPEED_LOW:
+ return (LIBUSB_SPEED_LOW);
+ case LIBUSB20_SPEED_FULL:
+ return (LIBUSB_SPEED_FULL);
+ case LIBUSB20_SPEED_HIGH:
+ return (LIBUSB_SPEED_HIGH);
+ case LIBUSB20_SPEED_SUPER:
+ return (LIBUSB_SPEED_SUPER);
+ default:
+ break;
+ }
+ return (LIBUSB_SPEED_UNKNOWN);
+}
+
int
libusb_get_max_packet_size(libusb_device *dev, uint8_t endpoint)
{
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