ustat
u32 ustat = readl(vhub->regs + AST_VHUB_USBSTS);
if (ustat & VHUB_USBSTS_HISPEED)
UDCDBG(vhub, "USB status=%08x speed=%s\n", ustat,
SYSCALL_DEFINE2(ustat, unsigned, dev, struct ustat __user *, ubuf)
struct ustat tmp;
memset(&tmp,0,sizeof(struct ustat));
return copy_to_user(ubuf, &tmp, sizeof(struct ustat)) ? -EFAULT : 0;
COMPAT_SYSCALL_DEFINE2(ustat, unsigned, dev, struct compat_ustat __user *, u)
asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf);