tree 97c9cb63f394b271ebe095ed9f9abdf3d68b6654
parent 7da223d47e6f1b6d6b4dfb2d2e2103ed862c69d9
author Benjamin Gordon <bmgordon@chromium.org> 1595964312 -0600
committer Commit Bot <commit-bot@chromium.org> 1596046774 +0000

lorgnette: Probe Epson scanners before returning

Lorgnette sends out network probes to find Epson scanners on the
network.  It currently returns every device that responds, but some
devices don't actually work with the epson2 backend.  Try to open each
returned device to see if the driver accepts it before returning them.

BUG=b:162024206
TEST=lorgnette_cli lists Artisan 837, but not XP-7100

Change-Id: Icf24e7aa41b741107ef25151f845892d322644b7
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform2/+/2324497
Tested-by: Benjamin Gordon <bmgordon@chromium.org>
Commit-Queue: Benjamin Gordon <bmgordon@chromium.org>
Reviewed-by: Fletcher Woodruff <fletcherw@chromium.org>
Reviewed-by: Jesse Schettler <jschettler@chromium.org>