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| author | Allen Martin <amartin@nvidia.com> | 2012-03-26 14:42:18 -0700 |
|---|---|---|
| committer | Allen Martin <amartin@nvidia.com> | 2012-04-03 09:28:31 -0700 |
| commit | d55c0ac2c147c6e88605f576b534e58c81a5ee38 (patch) | |
| tree | 7261e07b9554d8e2578f6e2c936ca446951c3b09 | |
| parent | 80b43dbd4f50b92db349c14b5833c177ece4a6df (diff) | |
| download | tegrarcm-d55c0ac2c147c6e88605f576b534e58c81a5ee38.tar.gz | |
reinitialize USB after miniloader download
After downloading the miniloader there is a USB disconnect/reconnect
which may result in a new USB address for the tegra device. Add an
explicit USB reenumeration after downloading miniloader to avoid hang
in this situation.
Change-Id: I217c9b925ddb67f76500ef0b45a143c2c182153f
Reviewed-on: http://git-master/r/94265
Reviewed-by: Allen Martin <amartin@nvidia.com>
Tested-by: Allen Martin <amartin@nvidia.com>
| -rw-r--r-- | src/main.c | 6 |
1 files changed, 6 insertions, 0 deletions
@@ -219,6 +219,12 @@ int main(int argc, char **argv) error(1, ret, "Error downloading miniloader"); printf("miniloader downloaded successfully\n"); + // device may have re-enumerated, so reopen USB + usb_close(usb); + usb = usb_open(USB_VENID_NVIDIA, &devid); + if (!usb) + error(1, errno, "could not open USB device"); + // now that miniloader is up, start nv3p protocol ret = nv3p_open(&h3p, usb); if (ret) |