diff options
| -rw-r--r-- | usb-linux.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/usb-linux.c b/usb-linux.c index 3a87ba6..b401cde 100644 --- a/usb-linux.c +++ b/usb-linux.c @@ -51,6 +51,8 @@ static struct collection device_list; static struct timeval next_dev_poll_time; +static int devlist_failures; + static void usb_disconnect(struct usb_device *dev) { if(!dev->dev) { @@ -219,9 +221,21 @@ static int usb_discover(void) cnt = libusb_get_device_list(NULL, &devs); if(cnt < 0) { - usbmuxd_log(LL_FATAL, "Could not get device list: %d", cnt); - return cnt; + usbmuxd_log(LL_WARNING, "Could not get device list: %d", cnt); + devlist_failures++; + // sometimes libusb fails getting the device list if you've just removed something + if(devlist_failures > 5) { + usbmuxd_log(LL_FATAL, "Too many errors getting device list\n"); + return cnt; + } else { + gettimeofday(&next_dev_poll_time, NULL); + next_dev_poll_time.tv_usec += DEVICE_POLL_TIME * 1000; + next_dev_poll_time.tv_sec += next_dev_poll_time.tv_usec / 1000000; + next_dev_poll_time.tv_usec = next_dev_poll_time.tv_usec % 1000000; + return 0; + } } + devlist_failures = 0; usbmuxd_log(LL_SPEW, "usb_discover: scanning %d devices", cnt); @@ -462,6 +476,7 @@ int usb_init(void) int res; usbmuxd_log(LL_DEBUG, "usb_init for linux / libusb 1.0"); + devlist_failures = 0; res = libusb_init(NULL); //libusb_set_debug(NULL, 3); if(res != 0) { |