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disk: Fix detection of MyDocs partition in DISK RAW mode for non RX-51 devices

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Pali Rohár committed 2016-05-12 00:12:55 +02:00
1 parent d2e7b3d242
commit cf95375177
1 file changed
+27 -9
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src/disk.c
+27 -9
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@@ -264,11 +264,15 @@ int disk_init(struct usb_device_info * dev) {
#ifdef __linux__
int fd;
int maj;
int min;
int maj1;
int maj2;
int min1;
int min2;
maj = -1;
min = -1;
maj1 = -1;
maj2 = -1;
min1 = -1;
min2 = -1;
FILE * f;
DIR * dir;
@@ -333,25 +337,39 @@ int disk_init(struct usb_device_info * dev) {
if ( devnum != usbdevnum || usbbusnum != busnum )
continue;
if ( sscanf(dirent->d_name, "%d:%d", &maj, &min) != 2 ) {
maj = -1;
min = -1;
if ( sscanf(dirent->d_name, "%d:%d", &maj2, &min2) != 2 ) {
maj2 = -1;
min2 = -1;
continue;
}
if ( maj1 != -1 && min1 != -1 && maj2 != -1 && min2 != -1 )
break;
maj1 = maj2;
min1 = min2;
maj2 = -1;
min2 = -1;
}
closedir(dir);
if ( maj == -1 || min == -1 ) {
if ( maj1 == -1 || min1 == -1 ) {
ERROR("Cannot find id for mmc block disk device");
return -1;
}
/* TODO: change 1 to 0 when disk_flash_dev will be implemented */
fd = disk_open_dev(maj, min, -1, 1);
/* RX-51 exports MyDocs in first usb device and just first partion, so host system see whole device without MBR table */
if ( dev->device == DEVICE_RX_51 )
fd = disk_open_dev(maj1, min1, -1, 1);
/* Other devices can export SD card as first partition and export whole mmc device, so host system will see MBR table */
else if ( maj2 != -1 && min2 != -1 )
fd = disk_open_dev(maj2, min2, 1, 1);
else
fd = disk_open_dev(maj1, min1, 1, 1);
if ( fd < 0 )
return -1;