Little Endian (working)
=======================
[hp5590] hp5590_init_scanner
[hp5590] hp5590_cmd: USB-in-USB: command : 0012
[hp5590] hp5590_control_msg: USB-in-USB: core data: no
[hp5590] hp5590_control_msg: USB-in-USB: sending control msg
[sanei_usb] sanei_usb_control_msg: rtype = 0x40, req = 4, value = 143, index = 0, len = 8
[sanei_usb] 0000: C0 04 00 12 00 00 32 00
Big Endian (not working)
========================
[hp5590] hp5590_init_scanner
[hp5590] hp5590_cmd: USB-in-USB: command : 0012
[hp5590] hp5590_control_msg: USB-in-USB: core data: no
[hp5590] hp5590_control_msg: USB-in-USB: sending control msg
[sanei_usb] sanei_usb_control_msg: rtype = 0x40, req = 4, value = 143, index = 0, len = 8
[sanei_usb] 000 C0 04 00 12 00 00 00 32
USB field wLength should always be treated little-endian, last command value during
verification is received as little-endian as well.
Thanks to Nhan Ngo Dinh for identifying the issue and providing the patch.
Signed-off-by: Ilia Sotnikov <hostcc@gmail.com
these devices need no reading USB-in-USB acknowledgement after each command.
To achieve that, proto_flags are passed down to low-level functions. These
flags are taken from device descriptions
hp5590: fixed up get_status command - index should be 0x00, not 0x20
hp5590: bump up the backend version
Source code was inconsistent on how they were referencing
include files in include/sane. In certain cases, sane/sane.h
and sane/saneopts.h was really including external copies (with
some preprocessor implementations anyways).
- Updated the list of supported devices (HP 5500C which is similar to
4570C, 5500C which is similar to 4500C) - only strings/comments, no
code was changed
- Updated backend version
- Updated man page
without calling sane_open() first, just skip ptr->opts free()'ing in that case.
Thanks to David Campbell for spotting this.
* Protect sane_control_option() from possible SIGSEGV when it would be called
with uninitialized scanner options (scanner->opts == NULL).
Ilia Sotnikov