[Nut-upsdev] Newhidups gets unbound after a while - Workaround

[Peter Selinger]

Excellent. Since you are the only user who has reported this problem,
there is the possibility that your UPS is broken. So if the workaround
works for you, great! -- Peter

Patrick Agrain wrote:
> 
> Hi all,
> 
> Back from holidays, I worked a little around this problem and found a 
> workaround for the non-reconnection of the device.
> 
> I comment the 3 tests concerning strings (Vendor, Product and Serial) in 
> libhid.c: match_function_exact().
> Therefore the match routine gets only busy with the ProductID and VendorID 
> and the device is reconnected :
> 
> Logs:
> <...>
> Waiting for notifications...
> process_status_info: online
> process_status_info: !dischrg
> process_status_info: chrg
> process_status_info: !shutdownimm
> Can't retrieve Report 1 (-32/32): Broken pipe
> ==================================================
> = device has been disconnected, try to reconnect =
> ==================================================
> Closing device
> Reopening device
> Checking device (0000/0000) (003/001)
> Found Manufacturer Index :3			<--- Add. trace : Removed
> usb_get_string:Unable to get supported language <--- Add. trace : Removed
> usb_get_string_simple returns -1		<--- Add. trace : Removed
> Found Product Index :2			<--- Add. trace : Removed
> usb_get_string:Unable to get supported language <--- Add. trace : Removed
> usb_get_string_simple returns -1		<--- Add. trace : Removed
> usb_get_string:Unable to get supported language <--- Add. trace : Removed
> - VendorID: 0000
> - ProductID: 0000
> - Manufacturer: unknown
> - Product: unknown
> - Serial Number: unknown
> - Bus: 003
> Trying to match device
> Device does not match - skipping
> Checking device (0000/0000) (002/001)
> No Manufacturer string Index			<--- Add. trace : Removed
> Found Product Index :2			<--- Add. trace : Removed
> usb_get_string:Unable to get supported language <--- Add. trace : Removed
> usb_get_string_simple returns -1		<--- Add. trace : Removed
> usb_get_string:Unable to get supported language <--- Add. trace : Removed
> - VendorID: 0000
> - ProductID: 0000
> - Manufacturer: unknown
> - Product: unknown
> - Serial Number: unknown
> - Bus: 002
> Trying to match device
> Device does not match - skipping
> Checking device (0463/FFFF) (002/002)
> Found Manufacturer Index :1 		<--- Add. trace : Removed
> usb_get_string:Unable to get supported language <--- Add. trace : Removed
> usb_get_string_simple returns -110 	<--- Add. trace : Removed
> Found Product Index :2 		<--- Add. trace : Removed
> - VendorID: 0463
> - ProductID: ffff
> - Manufacturer: unknown
> - Product: ELLIPSE
> - Serial Number: 1HDF44001
> - Bus: 002
> Trying to match device
> match_function_exact() : return 1 	<--- Add. trace : Removed
> Device matches
> Device reopened successfully
> upsdrv_updateinfo...
> process_status_info: online
> process_status_info: !dischrg
> process_status_info: chrg
> process_status_info: !shutdownimm
> process_status_info: !lowbatt
> process_status_info: !overload
> process_status_info: !replacebatt
> process_status_info: !off
> upsdrv_updateinfo...
> <...>
> 
> I know this is not the way to correct the problem, but with this workaround 
> ( invisible from user point of view ), I will have more time to get deeper 
> into details. And there is also the disconnection problem to solve.
> 
> I will wait for the 2.0.4 version to see what could be integrated.
> 
> Note : on my test unit, it is now working the last 15 hours without 
> interruption... and continue.
> 
> Regards,
> Patrick Agrain
> 
> 
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