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-rw-r--r--firmware/common/dir.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/firmware/common/dir.c b/firmware/common/dir.c
index 5fa5f9db6e..9f5f082b56 100644
--- a/firmware/common/dir.c
+++ b/firmware/common/dir.c
@@ -34,9 +34,11 @@ static DIR opendirs[MAX_OPEN_DIRS];
/* how to name volumes, first char must be outside of legal file names,
a number gets appended to enumerate, if applicable */
#ifdef HAVE_MMC
-static const char* vol_names = ":MMC";
+static const char* vol_names = "<MMC%d>";
+#define VOL_ENUM_POS 4 /* position of %d, to avoid runtime calculation */
#else
-static const char* vol_names = ":HD";
+static const char* vol_names = "<HD%d>";
+#define VOL_ENUM_POS 3
#endif
/* returns on which volume this is, and copies the reduced name
@@ -45,10 +47,10 @@ static int strip_volume(const char* name, char* namecopy)
{
int volume = 0;
- if (name[1] == vol_names[0] ) /* a colon identifies our volumes */
+ if (name[1] == vol_names[0] ) /* a '<' quickly identifies our volumes */
{
const char* temp;
- temp = name + 1 + strlen(vol_names); /* behind special name */
+ temp = name + 1 + VOL_ENUM_POS; /* behind '/' and special name */
volume = atoi(temp); /* number is following */
temp = strchr(temp, '/'); /* search for slash behind */
if (temp != NULL)
@@ -167,7 +169,7 @@ struct dirent* readdir(DIR* dir)
memset(theent, 0, sizeof(*theent));
theent->attribute = FAT_ATTR_DIRECTORY | FAT_ATTR_VOLUME;
snprintf(theent->d_name, sizeof(theent->d_name),
- "%s%d", vol_names, dir->volumecounter);
+ vol_names, dir->volumecounter);
return theent;
}
}