Hi, i've have maybe a rather stupid question, but here we go:
I own an older scanner plustek optic slim 1200, which uses the gt68xx backend. For years, it worked fine with sane. Since several month (at least with sane-backends 1.0.23), I can not use this scanner anymore, because it fails with following message: | # ./scanimage -x 10cm -y 10 cm > bla.img | [gt68xx] sane_open: power control failure: check power plug! | scanimage: open of device gt68xx:libusb:004:006 failed: Error during device I/O One must know: The plustek optic slim 1200 is powrered by USB only. There is no possibillity to plug in a power adapter... So I asked google and got a hint to "GT68XX_FLAG_NO_POWER_STATUS". I found it in sane-backends-1.0.23/backend/gt68xx_low.h: #define GT68XX_FLAG_NO_POWER_STATUS (1 << 7) /* get_power_status_doesn't work */ I am not familiar with the use of such flags, but for my understanding, actually this flag should be set. At least, one bit in it is set (and, despite of that, I get the power plug error). I set #define GT68XX_FLAG_NO_POWER_STATUS (0 << 7) and recompiled sane, but no change. Additionally, I erased all appearances of "GT68XX_FLAG_NO_POWER_STATUS" in gt68xx_devices.c and gt68xx_gt6816.c, and recompiled it again, but no change. So my stupid question is: How I have to change the sources to get this scanner working? kind regards, N.
