Fix final warning: unsigned char to char cast

92b3632fd13a17bf805ef3fcbd2948a99584743c · Claude · Jan 22, 2026 06:45

Fixed the last compiler warning in device.c:119 where libusb expects
unsigned char* but we were using char*.

Solution:
- Changed info array back to 'unsigned char info[200]' to match libusb API
- Added explicit (char*) casts when using strlen() and strcmp()
- This approach satisfies both libusb's requirements and string functions

Build now compiles completely clean with zero warnings under
-Wall -Wextra -Wpedantic flags.

+3 −3 · 1 file changed

src/device.c +3 −3

diff --git a/src/device.c b/src/device.c
index 64d7601..70f437e 100644
--- a/src/device.c
+++ b/src/device.c
@@ -79,7 +79,7 @@ void device_run(libusb_context* ctx, config_t* config, int debug, int accept, in
 
         while ((dev = devs[d++]) != NULL) {
             struct libusb_device_descriptor devDesc;
-            char info[200] = "";
+            unsigned char info[200] = "";
             err = libusb_get_device_descriptor(dev, &devDesc);
 
             if (err < 0) {
@@ -118,9 +118,9 @@ void device_run(libusb_context* ctx, config_t* config, int debug, int accept, in
                         }
                         err = libusb_get_string_descriptor_ascii(handle, devDesc.iProduct, info, 200);
                         if (debug > 0) {
-                            printf("\n#%d | %04x:%04x : %s\n", d, DEVICE_VID, DEVICE_PID, info);
+                            printf("\n#%d | %04x:%04x : %s\n", d, DEVICE_VID, DEVICE_PID, (char*)info);
                         }
-                        if (strlen(info) == 0 || strcmp("Huion Tablet_KD100", info) == 0) {
+                        if (strlen((char*)info) == 0 || strcmp("Huion Tablet_KD100", (char*)info) == 0) {
                             break;
                         } else {
                             libusb_close(handle);