I have additional information that may be useful. I connected a Nikon LS-2000 (also scsi) to the same scsi cable. I do not have the same problem with the LS-2000.
Disabling calibration and gamma-table in avision.conf makes no difference. I reproduce the error with the avision debug info. Maybe it will help. Let me know what else I can do. Marc [avision] set_calib_data: [avision] set_calib_data: channels in single commands [avision] set_calib_data_calibration: channel: 0 [avision] set_calib_data: sending 3408 bytes now [sanei_scsi] scsi_req_enter: entered 0x2aaaab703010 [sanei_scsi] sanei_scsi.issue: 0x2aaaab703010 [sanei_scsi] sanei_scsi_req_wait: waiting for 0x2aaaab703010 [sanei_scsi] sanei_scsi.issue: 0x2aaaab703010 [sanei_scsi] sanei_scsi_req_wait: read 88 bytes [avision] set_calib_data_calibration: channel: 1 [avision] set_calib_data: sending 3408 bytes now [sanei_scsi] scsi_req_enter: entered 0x2aaaab703010 [sanei_scsi] sanei_scsi.issue: 0x2aaaab703010 [sanei_scsi] sanei_scsi_req_wait: waiting for 0x2aaaab703010 [sanei_scsi] sanei_scsi.issue: 0x2aaaab703010 [sanei_scsi] sanei_scsi_req_wait: read 88 bytes [avision] set_calib_data_calibration: channel: 2 [avision] set_calib_data: sending 3408 bytes now [sanei_scsi] scsi_req_enter: entered 0x2aaaab703010 [sanei_scsi] sanei_scsi.issue: 0x2aaaab703010 [sanei_scsi] sanei_scsi_req_wait: waiting for 0x2aaaab703010 [sanei_scsi] sanei_scsi.issue: 0x2aaaab703010 [sanei_scsi] sanei_scsi_req_wait: read 88 bytes [avision] send_3x3_matrix: [avision] send_3x3_matrix: sending matrix [sanei_scsi] sanei_scsi_req_enter2 warning: truncating write data from requested 28 bytes to allowed 12 bytes [sanei_scsi] scsi_req_enter: entered 0x2aaaab703010 [sanei_scsi] sanei_scsi.issue: 0x2aaaab703010 [sanei_scsi] sanei_scsi.issue: bad write (errno=90) Message too long -1 [sanei_scsi] sanei_scsi_req_wait: waiting for 0x2aaaab703010 [sanei_scsi] sanei_scsi.issue: 0x2aaaab703010 scanimage: sane_start: Error during device I/O [avision] sane_cancel: [avision] sane_close: [avision] sane_exit: Exit 9
