\ingroup libusb_desc * Free a configuration descriptor obtained from * libusb_get_active_config_descriptor() or libusb_get_config_descriptor(). * I

\ingroup libusb_misc * Check at runtime if the loaded library has a given capability. * This call should be performed after \ref libusb_init(), to e

take a -128..127 value and stbi__clamp it and convert to 0..255

returns 1 if "a*b*c + add" has no negative terms/factors and doesn't overflow

* Create both an fd and an OVERLAPPED from an open Windows handle, so that * it can be used with our polling function * The handle MUST support over

Remove a file descriptor from the list of file descriptors to be polled. */

Perform some final sanity checks on a newly discovered device. If this * function fails (negative return code), the device should not be added * to

Perform inverse FFT, returning real data Accepts: input_re - pointer to an array of the real part of the output, size nfft/2 + 1 input_im - pointer to

append a device to the discovered devices collection. may realloc itself, * returning new discdevs. returns NULL on realloc failure. */

* Lookup interface by endpoint address. -1 if not found */

* \ingroup libusb_misc * Convert a 16-bit value from host-endian to little-endian format. On * little endian systems, this function does nothing. On

State setting

initialize a callback-based context

initialize a memory-decode context