void dump_device_info(struct libusb20_device *pdev, uint8_t show_ifdrv) { char buf[128]; uint8_t n; unsigned int usage; usage = libusb20_dev_get_power_usage(pdev); printf("%s, cfg=%u md=%s spd=%s pwr=%s (%umA)\n", libusb20_dev_get_desc(pdev), libusb20_dev_get_config_index(pdev), dump_mode(libusb20_dev_get_mode(pdev)), dump_speed(libusb20_dev_get_speed(pdev)), dump_power_mode(libusb20_dev_get_power_mode(pdev)), usage); if (!show_ifdrv) return; for (n = 0; n != 255; n++) { if (libusb20_dev_get_iface_desc(pdev, n, buf, sizeof(buf))) break; if (buf[0] == 0) continue; printf("ugen%u.%u.%u: %s\n", libusb20_dev_get_bus_number(pdev), libusb20_dev_get_address(pdev), n, buf); } }
void usb_suspend_resume_test(uint16_t vid, uint16_t pid, uint32_t duration) { struct timeval sub_tv; struct timeval ref_tv; struct timeval res_tv; struct libusb20_device *pdev; time_t last_sec; int iter; int error; int ptimo; int errcnt; int power_old; ptimo = 1; /* second(s) */ error = sysctlbyname("hw.usb.power_timeout", NULL, NULL, &ptimo, sizeof(ptimo)); if (error != 0) { printf("WARNING: Could not set power " "timeout to 1 (error=%d) \n", errno); } pdev = find_usb_device(vid, pid); if (pdev == NULL) { printf("USB device not found\n"); return; } error = libusb20_dev_open(pdev, 0); if (error) { printf("Could not open USB device\n"); libusb20_dev_free(pdev); return; } power_old = libusb20_dev_get_power_mode(pdev); printf("Starting suspend and resume " "test for VID=0x%04x PID=0x%04x\n", vid, pid); iter = 0; errcnt = 0; gettimeofday(&ref_tv, 0); last_sec = ref_tv.tv_sec; while (1) { if (libusb20_dev_check_connected(pdev) != 0) { printf("Device disconnected\n"); break; } gettimeofday(&sub_tv, 0); if (last_sec != sub_tv.tv_sec) { printf("STATUS: ID=%u, ERR=%u\n", (int)iter, (int)errcnt); fflush(stdout); last_sec = sub_tv.tv_sec; } timersub(&sub_tv, &ref_tv, &res_tv); if ((res_tv.tv_sec < 0) || (res_tv.tv_sec >= (int)duration)) break; error = libusb20_dev_set_power_mode(pdev, (iter & 1) ? LIBUSB20_POWER_ON : LIBUSB20_POWER_SAVE); if (error) errcnt++; /* wait before switching power mode */ usleep(4100000 + (((uint32_t)usb_ts_rand_noise()) % 2000000U)); iter++; } /* restore default power mode */ libusb20_dev_set_power_mode(pdev, power_old); libusb20_dev_free(pdev); }