diff options
Diffstat (limited to 'commandline/library/micronucleus_lib.c')
| -rw-r--r-- | commandline/library/micronucleus_lib.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/commandline/library/micronucleus_lib.c b/commandline/library/micronucleus_lib.c index e2f6791..0569dbe 100644 --- a/commandline/library/micronucleus_lib.c +++ b/commandline/library/micronucleus_lib.c @@ -66,6 +66,10 @@ micronucleus* micronucleus_connect(int fast_mode) { // get nucleus info unsigned char buffer[6]; int res = usb_control_msg(nucleus->device, USB_ENDPOINT_IN| USB_TYPE_VENDOR | USB_RECIP_DEVICE, 0, 0, 0, (char *)buffer, 6, MICRONUCLEUS_USB_TIMEOUT); + + // Device descriptor was found, but talking to it was not succesful. This can happen when the device is being reset. + if (res<0) return NULL; + assert(res >= 6); nucleus->flash_size = (buffer[0]<<8) + buffer[1]; @@ -97,6 +101,10 @@ micronucleus* micronucleus_connect(int fast_mode) { // get nucleus info unsigned char buffer[4]; int res = usb_control_msg(nucleus->device, USB_ENDPOINT_IN| USB_TYPE_VENDOR | USB_RECIP_DEVICE, 0, 0, 0, (char *)buffer, 4, MICRONUCLEUS_USB_TIMEOUT); + + // Device descriptor was found, but talking to it was not succesful. This can happen when the device is being reset. + if (res<0) return NULL; + assert(res >= 4); nucleus->flash_size = (buffer[0]<<8) + buffer[1]; |