Lines Matching refs:rv
109 int rv;
112 rv = libusb_claim_interface(usb, ifnum);
113 if (rv == 0)
116 return rv;
121 printf("failed with error %d, trying to detach kernel driver ....\n", rv);
122 rv = libusb_detach_kernel_driver(usb, ifnum);
123 if (rv == 0)
126 rv = libusb_claim_interface(usb, ifnum);
127 if (rv == 0)
130 return rv;
136 printf("failed with error %d, giving up.\n", rv);
137 return rv;
146 int rv, i;
152 rv = libusb_init(NULL);
153 if (rv < 0)
156 return rv;
172 rv = libusb_get_device_descriptor(dev, &desc);
173 if (rv < 0) {
192 rv = libusb_open(found_dev, &usb);
193 if (rv < 0)
200 rv = kobil_midentity_claim_interface(usb, 0);
201 if (rv < 0)
207 rv = kobil_midentity_claim_interface(usb, 1);
208 if (rv < 0)
215 rv = kobil_midentity_control_msg(usb);
216 if (rv == 0)
219 printf("failed with error %d, giving up.\n", rv);