mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-22 15:03:28 +00:00
55e85a0d62
This plugin adds support for the GT-S650, Perfection V19 and Perfection V39 scanners. I've tested it personally with an Epson Perfection V39. This plugin uses the ISCAN_FIRMWARE_DIR environment variable, not ISCAN_FW_DIR. A quick grep didn't find any use of ISCAN_FW_DIR in the currently packaged plugins, but a quick Google suggests that this variable does (or at least used to) exist, so I'm not touching it.
22 lines
879 B
Diff
22 lines
879 B
Diff
Explanation:
|
|
in libesci-interpreter-gt-f720.so in
|
|
libesci_interpreter_gt_f720_342::libesci_interpreter_gt_f720_348 at 0xdf74: the
|
|
binary blob esfw8b.bin is searched either in /usr/share/esci/ or in
|
|
$ESCI_FIRMWARE_DIR. But since this library is to be used wia libsane.so in
|
|
every binary in the system, we can't wrapProgram the relevant executables to
|
|
set this environment variable. Instead, we patch iscan to set this variable
|
|
before loading libesci-interpreter-gt-f720.so.
|
|
--- backend/channel-usb.c.orig 2017-08-14 11:24:27.669582456 +0200
|
|
+++ backend/channel-usb.c 2017-08-14 11:31:40.509010897 +0200
|
|
@@ -169,6 +169,10 @@
|
|
{
|
|
SANE_Status s;
|
|
|
|
+ setenv("ESCI_FIRMWARE_DIR", NIX_ESCI_PREFIX, 1);
|
|
+ setenv("ISCAN_FW_DIR", NIX_ESCI_PREFIX, 1);
|
|
+ setenv("ISCAN_FIRMWARE_DIR", NIX_ESCI_PREFIX, 1);
|
|
+
|
|
s = sanei_usb_open (self->name, &self->fd);
|
|
|
|
if (SANE_STATUS_GOOD == s)
|