diff options
Diffstat (limited to 'src/drivers/device/cdev.cpp')
| -rw-r--r-- | src/drivers/device/cdev.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/drivers/device/cdev.cpp b/src/drivers/device/cdev.cpp index b157b3f18..39fb89501 100644 --- a/src/drivers/device/cdev.cpp +++ b/src/drivers/device/cdev.cpp @@ -124,7 +124,7 @@ CDev::register_class_devname(const char *class_devname) if (ret == OK) break; } else { char name[32]; - snprintf(name, sizeof(name), "%s%u", class_devname, class_instance); + snprintf(name, sizeof(name), "%s%d", class_devname, class_instance); ret = register_driver(name, &fops, 0666, (void *)this); if (ret == OK) break; } @@ -268,6 +268,13 @@ CDev::ioctl(struct file *filp, int cmd, unsigned long arg) break; } + /* try the superclass. The different ioctl() function form + * means we need to copy arg */ + unsigned arg2 = arg; + int ret = Device::ioctl(cmd, arg2); + if (ret != -ENODEV) + return ret; + return -ENOTTY; } |