Comment 15 for bug 1080787

On a another try, got these additional lines for debugging Bus 005 Device 006: ID 03f0:0701 Hewlett-Packard ScanJet 5300c/5370c:

> export SANE_DEBUG_AVISION=7
> scanimage -L
...
[avision] attach:
[avision] attach: opening libusb:005:009
[avision] inquiry: length: 96
[avision] inquiry: inquiring ...
[avision] filling command to have a length of 10, was: 6
[avision] Timeouts: write: 30000, read: 1000, status: 1000
[avision] === Got error 9 trying to write, wrote: 0. ===
[avision] try to read status to clear the FIFO
[avision] avision_usb_status: timeout 500, 1 retries
[avision] ==> (bulk read) going down ...
[avision] <== (bulk read) got: 0, status: 0
[avision] ==> (interrupt read) going down ...
[avision] <== (interrupt read) got: 0, status: 0
[avision] === Got error 9 trying to read status. ===
[avision] inquiry: inquiry failed (Error during device I/O)
[avision] inquiry: inquiring ...
[avision] filling command to have a length of 10, was: 6
[avision] Timeouts: write: 30000, read: 1000, status: 1000
[avision] === Got error 9 trying to write, wrote: 0. ===
[avision] try to read status to clear the FIFO
[avision] avision_usb_status: timeout 500, 1 retries
[avision] ==> (bulk read) going down ...
[avision] <== (bulk read) got: 0, status: 0
[avision] ==> (interrupt read) going down ...
[avision] <== (interrupt read) got: 0, status: 0
[avision] === Got error 9 trying to read status. ===
[avision] inquiry: inquiry failed (Error during device I/O)
[avision] attach: 1st inquiry failed (Error during device I/O)