OpenUSB Developers Guide
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openusb_get_configuration, openusb_set_configuration

Name

openusb_get_configuration, openusb_set_configuration -- Get the current bConfigurationValue of a device, Set a device's bConfigurationValue

Synopsis

int32_t openusb_get_configuration(openusb_dev_handle_t dev, uint8_t* cfg);

int32_topenusb_set_configuration(openusb_dev_handle_t dev, uint8_t cfg);

Parameters

dev - Device handle.

cfg - Configuration value.

Description

openusb_get_configuration() gets the current active configuration value of the device specified by dev. The bConfigurationValue is returned in cfg.

openusb_set_configuration() sets a device's bConfigurationValue to cfg.

Return Value

openusb_get_configuration() or openusb_set_configuration() returns 0 on success. Otherwise, a openusb error is returned.

OPENUSB_SUCCESS No errors.

OPENUSB_BADARG cfg is an invalid address for openusb_get_configuration(), or not a valid bConfigurationValue for openusb_set_configuration()

OPENUSB_UNKNOWN_DEVICE Device handle is not valid

See Also

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openusb_get_max_xfer_sizeUpopenusb_claim_interface, openusb_release_interface, openusb_is_interface_claimed