From: David Schleef <ds@schleef.org>
Date: Sun, 15 Oct 2000 22:33:01 +0000 (+0000)
Subject: new
X-Git-Tag: r0_7_51~48
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=421807c3153d96e440a93939cc8ad56b5dcee898;p=comedi.git

new
---

diff --git a/include/asm/uaccess.h b/include/asm/uaccess.h
new file mode 100644
index 00000000..01235476
--- /dev/null
+++ b/include/asm/uaccess.h
@@ -0,0 +1,48 @@
+
+#ifndef __COMPAT_ASM_UACCESS_H
+#define __COMPAT_ASM_UACCESS_H
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,2,0)
+/* unknown, approx 2.1.4 */
+
+
+#include <asm/segment.h>
+
+static inline int copy_to_user(void * to,const void *from,unsigned long n_bytes)
+{
+	int i;
+
+	if((i=verify_area(VERIFY_WRITE,to,n_bytes)) != 0)
+		return i;
+	memcpy_tofs(to,from,n_bytes);
+	return 0;
+}
+
+static inline int copy_from_user(void * to,const void *from,unsigned long n_bytes)
+{
+	int i;
+	if((i=verify_area(VERIFY_READ,from,n_bytes))!=0)
+		return i;
+	memcpy_fromfs(to,from,n_bytes);
+	return 0;
+}
+
+static inline int clear_user(void * mem,unsigned long len)
+{
+	char *cmem=mem;
+	
+	if(verify_area(VERIFY_WRITE,mem,len))
+		return len;
+	/* this is slow, but I'm lazy */
+	while(len--){put_user(0,cmem);cmem++;}
+	return 0;
+}
+
+#else
+
+#include_next <asm/uaccess.h>
+
+#endif
+
+#endif
+
diff --git a/include/linux/wait.h b/include/linux/wait.h
new file mode 100644
index 00000000..43a378cf
--- /dev/null
+++ b/include/linux/wait.h
@@ -0,0 +1,16 @@
+
+#ifndef __COMPAT_LINUX_WAIT_H
+#define __COMPAT_LINUX_WAIT_H
+
+#include <linux/version.h>
+
+#include_next <linux/wait.h>
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,2,18)
+typedef struct wait_queue *wait_queue_head_t;
+#define DECLARE_WAITQUEUE(x,y) struct wait_queue x={y,NULL}
+#define init_waitqueue_head(x)
+#endif
+
+#endif
+