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resource: Also check $SIGROK_FIRMWARE_DIR for firmware files. 

If the SIGROK_FIRMWARE_DIR environment variable is specified, look there
first for firmware files.
This commit is contained in:
Uwe Hermann 2017-08-15 22:15:47 +02:00
parent dde0175d19
commit 1503d4571b
2 changed files with 12 additions and 3 deletions
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1
README.devices
View File

@ -14,6 +14,7 @@ the device is connected to the PC (usually via USB), before it can be used.
The default locations where libsigrok expects the firmware files are:
$SIGROK_FIRMWARE_DIR (environment variable)
$HOME/.local/share/sigrok-firmware
$prefix/share/sigrok-firmware
/usr/local/share/sigrok-firmware

14
src/resource.c
View File

@ -102,9 +102,9 @@ static int resource_open_default(struct sr_resource *res,
#ifdef FIRMWARE_DIR
const char *builtindir;
#endif
const char *subdir;
const char *subdir, *env;
const char *const *datadirs;
FILE *file;
FILE *file = NULL;
(void)cb_data;
@ -120,7 +120,15 @@ static int resource_open_default(struct sr_resource *res,
return SR_ERR_ARG;
}
file = try_open_file(g_get_user_data_dir(), subdir, name);
env = g_getenv("SIGROK_FIRMWARE_DIR");
if (!env)
sr_dbg("SIGROK_FIRMWARE_DIR environment variable not set, ignoring.");
else
file = try_open_file(env, "", name);
if (!file)
file = try_open_file(g_get_user_data_dir(), subdir, name);
/*
* Scan the hard-coded directory before the system directories to
* avoid picking up possibly outdated files from a system install.