[sane-devel] HP ScanJet 4100C - assertion failed

[Yves Martin]

Selon Yves Martin <ymartin59 at free.fr>:

>  The first run of scanimage is fast - and core dumped. The second run is
> really,
>  really slow - but core dumped too with the same message.
>  Then the device does not appear any longer:
>  /dev/usb/scanner0 does not exist ?? connect/disconnect changes nothing ??
>  I have to reboot my Linux to get back the device !!
> 
>  What's wrong ? Do I have to patch something in my kernel ?

  I forgot to add some logs from dmesg !

usb.c: registered new driver usbscanner
scanner.c: USB scanner device (0x03f0/0x0101) now attached to scanner0
scanner.c: 0.4.12:USB Scanner Driver

 Many:   usb_control/bulk_msg: timeout

 And something strange:
ESSCOM: III=> not our interrupt
Buffer over turn   (many)
usb-uhci.c: interrupt, status 3, frame# 61
scanner.c: read_scanner(0): funky result:-84. Consult Documentation/usb/scanner.txt.
usb.c: USB disconnect on device 00:11.2-2 address 2
hub.c: new USB device 00:11.2-2, assigned address 3
scanner.c: USB scanner device (0x03f0/0x0101) now attached to scanner0
hub.c: new USB device 00:11.3-1, assigned address 2

 I will do another run without the ESSCOM module loaded (ESS 2839 driver)
 to be sure... And try the hp_scan.c test from Documentation/usb/scanner.txt
-- 
Yves Martin