| libusb.3 (37d0636aac290cc86ec7149a55167f6c21ad480f) | libusb.3 (7bdc064b0b644d15bd9614d9e7db5c4279736d75) |
|---|---|
| 1.\" 2.\" Copyright (c) 2009 Sylvestre Gallon 3.\" 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: --- 12 unchanged lines hidden (view full) --- 21.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25.\" SUCH DAMAGE. 26.\" 27.\" $FreeBSD$ 28.\" | 1.\" 2.\" Copyright (c) 2009 Sylvestre Gallon 3.\" 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: --- 12 unchanged lines hidden (view full) --- 21.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25.\" SUCH DAMAGE. 26.\" 27.\" $FreeBSD$ 28.\" |
| 29.Dd June 17, 2016 | 29.Dd June 22, 2016 |
| 30.Dt LIBUSB 3 31.Os 32.Sh NAME 33.Nm libusb 34.Nd "USB access library" 35.Sh LIBRARY 36USB access library 37.Pq libusb, -lusb --- 599 unchanged lines hidden (view full) --- 637These functions will be invoked for every new or removed file descriptor 638that libusb uses as an event source. 639.Pp 640.Ft const struct libusb_pollfd ** 641.Fn libusb_get_pollfds "libusb_context *ctx" 642Retrive a list of file descriptors that should be polled by your main loop as 643libusb event sources. 644Returns a NULL-terminated list on success or NULL on failure. | 30.Dt LIBUSB 3 31.Os 32.Sh NAME 33.Nm libusb 34.Nd "USB access library" 35.Sh LIBRARY 36USB access library 37.Pq libusb, -lusb --- 599 unchanged lines hidden (view full) --- 637These functions will be invoked for every new or removed file descriptor 638that libusb uses as an event source. 639.Pp 640.Ft const struct libusb_pollfd ** 641.Fn libusb_get_pollfds "libusb_context *ctx" 642Retrive a list of file descriptors that should be polled by your main loop as 643libusb event sources. 644Returns a NULL-terminated list on success or NULL on failure. |
| 645.Pp 646.Ft int 647.Fn libusb_hotplug_register_callback "libusb_context *ctx" "libusb_hotplug_event events" "libusb_hotplug_flag flags" "int vendor_id" "int product_id" "int dev_class" "libusb_hotplug_callback_fn cb_fn" "void *user_data" "libusb_hotplug_callback_handle *handle" 648This function registers a hotplug filter. 649The 650.Fa events 651argument select which events makes the hotplug filter trigger. 652Available event values are LIBUSB_HOTPLUG_EVENT_DEVICE_ARRIVED and LIBUSB_HOTPLUG_EVENT_DEVICE_LEFT. 653One or more events must be specified. 654The 655.Fa vendor_id , 656.Fa product_id 657and 658.Fa dev_class 659arguments can be set to LIBUSB_HOTPLUG_MATCH_ANY to match any value in the USB device descriptor. 660Else the specified value is used for matching. 661If the 662.Fa flags 663argument is set to LIBUSB_HOTPLUG_ENUMERATE, all currently attached and matching USB devices will be passed to the hotplug filter, given by the 664.Fa cb_fn 665argument. 666Else the 667.Fa flags 668argument should be set to LIBUSB_HOTPLUG_NO_FLAGS. 669This function returns 0 upon success or a LIBUSB_ERROR code on failure. 670.Pp 671.Ft int 672.Fn libusb_hotplug_callback_fn "libusb_context *ctx" "libusb_device *device" "libusb_hotplug_event event" "void *user_data" 673The hotplug filter function. 674If this function returns non-zero, the filter is removed. 675Else the filter is kept and can receive more events. 676The 677.Fa user_data 678argument is the same as given when the filter was registered. 679The 680.Fa event 681argument can be either of LIBUSB_HOTPLUG_EVENT_DEVICE_ARRIVED or LIBUSB_HOTPLUG_EVENT_DEVICE_LEFT. 682.Pp 683.Ft void 684.Fn libusb_hotplug_deregister_callback "libusb_context *ctx" "libusb_hotplug_callback_handle handle" 685This function unregisters a hotplug filter. |
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| 645.Sh LIBUSB VERSION 0.1 COMPATIBILITY 646The library is also compliant with LibUSB version 0.1.12. 647.Pp 648.Fn usb_open 649.Fn usb_close 650.Fn usb_get_string 651.Fn usb_get_string_simple 652.Fn usb_get_descriptor_by_endpoint --- 38 unchanged lines hidden --- | 686.Sh LIBUSB VERSION 0.1 COMPATIBILITY 687The library is also compliant with LibUSB version 0.1.12. 688.Pp 689.Fn usb_open 690.Fn usb_close 691.Fn usb_get_string 692.Fn usb_get_string_simple 693.Fn usb_get_descriptor_by_endpoint --- 38 unchanged lines hidden --- |