3 files changed, 4 insertions, 0 deletions
diff --git a/sys/include/sys/device.h b/sys/include/sys/device.h
index a3ce983..9851ee2 100644
--- a/sys/include/sys/device.h
+++ b/sys/include/sys/device.h
@@ -41,6 +41,7 @@ struct device {
     size_t blocksize;
     int(*write)(struct device *dev, struct sio_txn *sio);
     int(*read)(struct device *dev, struct sio_txn *sio);
+    int(*ioctl)(struct device *dev, uint32_t cmd, uintptr_t arg);
     paddr_t(*mmap)(struct device *dev, off_t off, vm_prot_t prot);
     TAILQ_ENTRY(device) link;
 };
diff --git a/sys/include/sys/syscall.h b/sys/include/sys/syscall.h
index 59b6036..0f5abf0 100644
--- a/sys/include/sys/syscall.h
+++ b/sys/include/sys/syscall.h
@@ -45,6 +45,7 @@ enum {
     SYS_lseek,
     SYS_mmap,
     SYS_munmap,
+    SYS_ioctl,
     __MAX_SYSCALLS
 };
 
diff --git a/sys/include/sys/system.h b/sys/include/sys/system.h
index c2e47c2..03ac710 100644
--- a/sys/include/sys/system.h
+++ b/sys/include/sys/system.h
@@ -31,11 +31,13 @@
 #define _SYS_SYSTEM_H_
 
 #include <sys/types.h>
+#include <sys/syscall.h>
 
 #if defined(_KERNEL)
 int copyin(uintptr_t uaddr, void *kaddr, size_t len);
 int copyout(const void *kaddr, uintptr_t uaddr, size_t len);
 int copyinstr(uintptr_t uaddr, char *kaddr, size_t len);
+uint64_t sys_ioctl(struct syscall_args *args);
 #endif
 
 #endif  /* !_SYS_SYSTEM_H_ */