diff options
| -rw-r--r-- | usb-linux.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/usb-linux.c b/usb-linux.c index 334b45d..fb1153b 100644 --- a/usb-linux.c +++ b/usb-linux.c @@ -1163,7 +1163,8 @@ static int usb_host_read_file(char *line, size_t line_size, const char *device_f int ret = 0; char filename[PATH_MAX]; - snprintf(filename, PATH_MAX, device_file, device_name); + snprintf(filename, PATH_MAX, USBSYSBUS_PATH "/devices/%s/%s", device_name, + device_file); f = fopen(filename, "r"); if (f) { fgets(line, line_size, f); @@ -1205,27 +1206,30 @@ static int usb_host_scan_sys(void *opaque, USBScanFunc *func) tmpstr += 3; bus_num = atoi(tmpstr); - if (!usb_host_read_file(line, sizeof(line), USBSYSBUS_PATH "/devices/%s/devnum", de->d_name)) + if (!usb_host_read_file(line, sizeof(line), "devnum", de->d_name)) goto the_end; if (sscanf(line, "%d", &addr) != 1) goto the_end; - if (!usb_host_read_file(line, sizeof(line), USBSYSBUS_PATH "/devices/%s/bDeviceClass", de->d_name)) + if (!usb_host_read_file(line, sizeof(line), "bDeviceClass", + de->d_name)) goto the_end; if (sscanf(line, "%x", &class_id) != 1) goto the_end; - if (!usb_host_read_file(line, sizeof(line), USBSYSBUS_PATH "/devices/%s/idVendor", de->d_name)) + if (!usb_host_read_file(line, sizeof(line), "idVendor", de->d_name)) goto the_end; if (sscanf(line, "%x", &vendor_id) != 1) goto the_end; - if (!usb_host_read_file(line, sizeof(line), USBSYSBUS_PATH "/devices/%s/idProduct", de->d_name)) + if (!usb_host_read_file(line, sizeof(line), "idProduct", + de->d_name)) goto the_end; if (sscanf(line, "%x", &product_id) != 1) goto the_end; - if (!usb_host_read_file(line, sizeof(line), USBSYSBUS_PATH "/devices/%s/product", de->d_name)) { + if (!usb_host_read_file(line, sizeof(line), "product", + de->d_name)) { *product_name = 0; } else { if (strlen(line) > 0) @@ -1233,7 +1237,7 @@ static int usb_host_scan_sys(void *opaque, USBScanFunc *func) pstrcpy(product_name, sizeof(product_name), line); } - if (!usb_host_read_file(line, sizeof(line), USBSYSBUS_PATH "/devices/%s/speed", de->d_name)) + if (!usb_host_read_file(line, sizeof(line), "speed", de->d_name)) goto the_end; if (!strcmp(line, "480\n")) speed = USB_SPEED_HIGH; |
