[Armadeus-commitlog] SF.net SVN: armadeus:[1107] trunk/target/linux/modules/fpga
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[Armadeus-commitlog] SF.net SVN: armadeus:[1107] trunk/target/linux/modules/fpga
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From: <Fa...@us...> - 2009-03-03 10:22:21
|
Revision: 1107
http://armadeus.svn.sourceforge.net/armadeus/?rev=1107&view=rev
Author: FabM
Date: 2009-03-03 10:22:12 +0000 (Tue, 03 Mar 2009)
Log Message:
-----------
[LINUX] Adding a drivers directory for wishbone example (firmware/wishbone_example)
Modified Paths:
--------------
trunk/target/linux/modules/fpga/Kconfig
trunk/target/linux/modules/fpga/Makefile
trunk/target/linux/modules/fpga/others/Kconfig
trunk/target/linux/modules/fpga/others/Makefile
Added Paths:
-----------
trunk/target/linux/modules/fpga/wishbone_example/
trunk/target/linux/modules/fpga/wishbone_example/Kconfig
trunk/target/linux/modules/fpga/wishbone_example/Makefile
trunk/target/linux/modules/fpga/wishbone_example/wb_button/
trunk/target/linux/modules/fpga/wishbone_example/wb_button/Wb_button/
Removed Paths:
-------------
trunk/target/linux/modules/fpga/others/Wb_button/
trunk/target/linux/modules/fpga/others/led/
trunk/target/linux/modules/fpga/wishbone_example/wb_button/Wb_button/Kconfig
trunk/target/linux/modules/fpga/wishbone_example/wb_button/Wb_button/Makefile
trunk/target/linux/modules/fpga/wishbone_example/wb_button/Wb_button/button.c
trunk/target/linux/modules/fpga/wishbone_example/wb_button/Wb_button/button.h
trunk/target/linux/modules/fpga/wishbone_example/wb_button/Wb_button/button_specific.h
trunk/target/linux/modules/fpga/wishbone_example/wb_button/Wb_button/testbutton.c
Modified: trunk/target/linux/modules/fpga/Kconfig
===================================================================
--- trunk/target/linux/modules/fpga/Kconfig 2009-03-03 09:56:47 UTC (rev 1106)
+++ trunk/target/linux/modules/fpga/Kconfig 2009-03-03 10:22:12 UTC (rev 1107)
@@ -15,6 +15,8 @@
source "drivers/armadeus/fpga/others/Kconfig"
+source "drivers/armadeus/fpga/wishbone_example/Kconfig"
+
source "drivers/armadeus/fpga/POD/Kconfig"
endmenu
Modified: trunk/target/linux/modules/fpga/Makefile
===================================================================
--- trunk/target/linux/modules/fpga/Makefile 2009-03-03 09:56:47 UTC (rev 1106)
+++ trunk/target/linux/modules/fpga/Makefile 2009-03-03 10:22:12 UTC (rev 1107)
@@ -8,7 +8,7 @@
# Part executed when called from kernel build system:
-obj-$(CONFIG_ARMADEUS_FPGA_DRIVERS) += dev_tools/ others/ POD/
+obj-$(CONFIG_ARMADEUS_FPGA_DRIVERS) += dev_tools/ others/ POD/ wishbone_example/
else
Modified: trunk/target/linux/modules/fpga/others/Kconfig
===================================================================
--- trunk/target/linux/modules/fpga/others/Kconfig 2009-03-03 09:56:47 UTC (rev 1106)
+++ trunk/target/linux/modules/fpga/others/Kconfig 2009-03-03 10:22:12 UTC (rev 1107)
@@ -11,7 +11,5 @@
---help---
All drivers for FPGA components
-source "drivers/armadeus/fpga/others/Wb_button/Kconfig"
-source "drivers/armadeus/fpga/others/Wb_led/Kconfig"
source "drivers/armadeus/fpga/others/i2ctest/Kconfig"
source "drivers/armadeus/fpga/others/ps2keyboard/Kconfig"
Modified: trunk/target/linux/modules/fpga/others/Makefile
===================================================================
--- trunk/target/linux/modules/fpga/others/Makefile 2009-03-03 09:56:47 UTC (rev 1106)
+++ trunk/target/linux/modules/fpga/others/Makefile 2009-03-03 10:22:12 UTC (rev 1107)
@@ -8,7 +8,7 @@
# Part executed when called from kernel build system:
-obj-$(CONFIG_ARMADEUS_FPGA_OTHERS_DRIVERS) += Wb_button/ Wb_led/ i2ctest/ ps2keyboard/
+obj-$(CONFIG_ARMADEUS_FPGA_OTHERS_DRIVERS) += i2ctest/ ps2keyboard/
else
Added: trunk/target/linux/modules/fpga/wishbone_example/Kconfig
===================================================================
--- trunk/target/linux/modules/fpga/wishbone_example/Kconfig (rev 0)
+++ trunk/target/linux/modules/fpga/wishbone_example/Kconfig 2009-03-03 10:22:12 UTC (rev 1107)
@@ -0,0 +1,15 @@
+
+#
+# Armadeus custom drivers configuration
+#
+#
+
+#
+config WISHBONE_EXAMPLE_DRIVERS
+ tristate "Drivers for wishbone example"
+ default n
+ depends on ARMADEUS_FPGA_DRIVERS
+ ---help---
+ Drivers used for wishbone example design that can be
+ found in firmware/wishbone_example/
+
Added: trunk/target/linux/modules/fpga/wishbone_example/Makefile
===================================================================
--- trunk/target/linux/modules/fpga/wishbone_example/Makefile (rev 0)
+++ trunk/target/linux/modules/fpga/wishbone_example/Makefile 2009-03-03 10:22:12 UTC (rev 1107)
@@ -0,0 +1,39 @@
+
+#
+# Main Makefile for the Armadeus FPGA related drivers
+#
+# Add your subdirectories to obj- target
+#
+
+ifneq ($(KERNELRELEASE),)
+
+# Part executed when called from kernel build system:
+obj-$(CONFIG_WISHBONE_EXAMPLE_DRIVERS) +=
+
+else
+
+# Part executed when called from standard make in this directory:
+
+BASE_DIR:=../../../../buildroot/
+REL:=$(shell grep "BR2_PACKAGE_LINUX_VERSION=" $(BASE_DIR).config | sed -e 's/BR2_PACKAGE_LINUX_VERSION=//' | sed -e 's/"//g')
+#
+ARMADEUS_KERNEL_DIR:=$(BASE_DIR)build_arm/linux-$(REL)
+ifeq ($(LINUX_DIR),)
+LINUX_DIR:=$(ARMADEUS_KERNEL_DIR)
+endif
+PWD:= $(shell pwd)
+
+default:
+ echo "Your Linux source dir is: $(LINUX_DIR)"
+ $(MAKE) -C $(LINUX_DIR) SUBDIRS=$(PWD) zImage modules
+
+clean:
+ echo "Your Linux source dir is: $(LINUX_DIR)"
+ $(MAKE) -C $(LINUX_DIR) SUBDIRS=$(PWD) clean
+
+install:
+ echo "Installing Armadeus drivers..."
+ $(MAKE) -C $(LINUX_DIR) SUBDIRS=$(PWD) INSTALL_MOD_PATH=$(TARGET_DIR) modules_install
+
+endif
+
Deleted: trunk/target/linux/modules/fpga/wishbone_example/wb_button/Wb_button/Kconfig
===================================================================
--- trunk/target/linux/modules/fpga/others/Wb_button/Kconfig 2009-03-02 16:14:50 UTC (rev 1105)
+++ trunk/target/linux/modules/fpga/wishbone_example/wb_button/Wb_button/Kconfig 2009-03-03 10:22:12 UTC (rev 1107)
@@ -1,8 +0,0 @@
-#
-#
-
-config ARMADEUS_BUTTON_DRIVER
- tristate "Wishbone Button driver"
- default n
- depends on ARMADEUS_FPGA_OTHERS_DRIVERS
- ---help---
Deleted: trunk/target/linux/modules/fpga/wishbone_example/wb_button/Wb_button/Makefile
===================================================================
--- trunk/target/linux/modules/fpga/others/Wb_button/Makefile 2009-03-02 16:14:50 UTC (rev 1105)
+++ trunk/target/linux/modules/fpga/wishbone_example/wb_button/Wb_button/Makefile 2009-03-03 10:22:12 UTC (rev 1107)
@@ -1,34 +0,0 @@
-#
-# Makefile for the Armadeus Wb_button drivers
-#
-
-ifneq ($(KERNELRELEASE),)
-
-obj-$(CONFIG_ARMADEUS_BUTTON_DRIVER) += button.o
-
-# Part executed when called from standard make in this directory:
-# (preferably use Makefile in parent directory)
-
-else
-
-ARMADEUS_BASE_DIR=../../../../../..
-include $(ARMADEUS_BASE_DIR)/Makefile.in
-
-KDIR := $(ARMADEUS_LINUX_DIR)
-PWD := $(shell pwd)
-
-default:
- $(MAKE) -C $(KDIR) SUBDIRS=$(PWD) modules
- -cp button.ko /tftpboot/
-
-test:
- ~/armadeus/buildroot/build_arm/staging_dir/bin/arm-linux-gcc testbutton.c -o testbutton
- chmod 755 testbutton
- cp testbutton /tftpboot/
-
-clean:
- rm -f *.*o \
- rm -f Module.symvers
-
-endif
-
Deleted: trunk/target/linux/modules/fpga/wishbone_example/wb_button/Wb_button/button.c
===================================================================
--- trunk/target/linux/modules/fpga/others/Wb_button/button.c 2009-03-02 16:14:50 UTC (rev 1105)
+++ trunk/target/linux/modules/fpga/wishbone_example/wb_button/Wb_button/button.c 2009-03-03 10:22:12 UTC (rev 1107)
@@ -1,226 +0,0 @@
-/*
- ***********************************************************************
- *
- * (c) Copyright 2007 Armadeus project
- * Fabien Marteau <fab...@ar...>
- * Driver for Wb_button IP
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- **********************************************************************
- */
-
-#include "button.h"
-
-/*********************************
- * simple fpga read/write
- *********************************/
-
-
-static ssize_t button_fpga_read(void * addr,u16 *data,struct button_dev *dev){
- *data = ioread16(addr);/* read the button value */
- return 2;
-}
-
-
-static ssize_t button_fpga_write(void * addr,u16 *data,struct button_dev *dev){
- ssize_t retval;
-
- iowrite16(*data,addr);/* write the button value */
- retval = 2;
- return retval;
-}
-
-/**********************************
- * irq management
- * awake read process
- * ********************************/
-
-static irqreturn_t fpga_interrupt(int irq,void *dev_id,struct pt_regs *reg){
- struct button_dev *ldev = dev_id;
- u16 data;
-
- button_fpga_read(ldev->fpga_virtual_base_address + FPGA_IRQ_PEND,&data,ldev);
- PDEBUG("Interrupt raised %x\n",data);
-
- if(data&WB_BUTTON_IRQ){
- /* wake up reading process */
- if(ldev->reading)up(&ldev->sem);
- /* acknowledge irq_mngr */
- button_fpga_write(ldev->fpga_virtual_base_address + FPGA_IRQ_ACK,&data,ldev);
- return IRQ_HANDLED;
- }else
- return IRQ_NONE;
-
-}
-
-/***********************************
- * characters file /dev operations
- * *********************************/
-ssize_t button_read(struct file *fildes, char __user *buff, size_t count, loff_t *offp){
- struct button_dev *ldev = fildes->private_data;
- u16 data=0;
- ssize_t retval = 0;
- DEFINE_WAIT(wait);
-
- ldev->reading = 1;
-
- if(*offp + count >= 1) /* Only one word can be read */
- count = 1 - *offp;
-
- if((retval=down_interruptible(&ldev->sem))<0)
- goto out;
-
- if((retval = button_fpga_read(ldev->fpga_virtual_base_address + FPGA_BUTTON,&data,ldev))<0)
- goto out;
-
- /* return data for user */
- if(copy_to_user(buff,&data,2)){
- printk(KERN_WARNING "read : copy to user data error\n");
- retval = -EFAULT;
- goto out;
- }
-
- *offp = *offp + count;
- retval = 1;
-
-out:
- PDEBUG("read : Return value %d\n",(int)retval);
- ldev->reading = 0;
- return retval;
-}
-
-
-int button_open(struct inode *inode, struct file *filp){
- /* Allocate and fill any data structure to be put in filp->private_data */
- filp->private_data = container_of(inode->i_cdev,struct button_dev, cdev);
- PDEBUG( "file opened\n");
- return 0;
-}
-
-/* ******************************
- * Init and release functions
- * ******************************/
-int button_release(struct inode *inode, struct file *filp){
- PDEBUG( "released\n");
- return 0;
-}
-
-/**********************************
- * Module management
- **********************************/
-static int __init button_init(void){
-
- int result; /* error return */
- int button_major,button_minor;
- u16 data;
- struct button_dev *sdev;
-
- button_major = 252;
- button_minor = 0;
-
- /* Allocate a private structure and reference it as driver's data */
- sdev = (struct button_dev *)kmalloc(sizeof(struct button_dev),GFP_KERNEL);
- if(sdev == NULL){
- printk(KERN_WARNING "button: unable to allocate private structure\n");
- return -ENOMEM;
- }
-
- /* initiate mutex locked */
- sdev->reading = 0;
- init_MUTEX_LOCKED(&sdev->sem);
-
- /* Get the major and minor device numbers */
- PDEBUG("Get the major and minor device numbers\n");
- if(button_major){
- devno = MKDEV(button_major,button_minor);
- result = register_chrdev_region(devno, N_DEV,BUTTON_NAME);
- }else{
- result = alloc_chrdev_region(&devno,button_minor,N_DEV,BUTTON_NAME);
- button_major = MAJOR(devno);
- }
- printk(KERN_INFO "button: MAJOR: %d MINOR: %d\n",MAJOR(devno),MINOR(devno));
- if(result < 0){
- printk(KERN_WARNING "button: can't get major %d\n",button_major);
- }
-
- /* Init the cdev structure */
- PDEBUG("Init the cdev structure\n");
- cdev_init(&sdev->cdev,&button_fops);
- sdev->cdev.owner = THIS_MODULE;
-
- /* Add the device to the kernel, connecting cdev to major/minor number */
- PDEBUG("Add the device to the kernel, connecting cdev to major/minor number \n");
- result = cdev_add(&sdev->cdev,devno,1);
- if(result < 0)printk(KERN_WARNING "button: can't add cdev\n");
-
- /* Requested I/O memory */
- sdev->fpga_virtual_base_address = (void*)IMX_CS1_VIRT;
-
- /* irq unmask */
- data=1 | ioread16(sdev->fpga_virtual_base_address + FPGA_IRQ_MASK);
- if((result=button_fpga_write(sdev->fpga_virtual_base_address + FPGA_IRQ_MASK,&data,sdev))<0)
- goto error;
-
- /* irq acknowledge */
- data=1;
- if((result=button_fpga_write(sdev->fpga_virtual_base_address + FPGA_IRQ_ACK,&data,sdev))<0)
- goto error;
-
- /* irq registering */
- printk(KERN_INFO "button: fpga irq shared gpioa 1\n");
- if(request_irq(IRQ_GPIOA(1),(irq_handler_t)fpga_interrupt,IRQF_SHARED,BUTTON_IRQ_NAME,sdev)<0){
- printk(KERN_ERR "Can't request fpga irq\n");
- goto error;
- }
-
-
- /* OK module inserted ! */
- buttondev = sdev;
- printk(KERN_INFO "button module insered\n");
- return 0;
-
-
-error:
- printk(KERN_ERR "%s: not inserted\n",BUTTON_NAME);
- free_all();
- return result;
-}
-
-static void __exit button_exit(void){
- free_all();
-}
-
-static void free_all(void){
- struct button_dev *sdev = buttondev;
-
- /* free irq*/
- free_irq(IRQ_GPIOA(1),sdev);
-
- /* delete the cdev structure */
- cdev_del(&sdev->cdev);
-
- /* Free the allocated memory */
- kfree(sdev);
-
- /* Release I/O memories */
- release_mem_region(FPGA_BASE_ADDR,FPGA_MEM_SIZE);
-
- /* free major and minor number */
- unregister_chrdev_region(devno,N_DEV);
- printk(KERN_INFO "button module deleted\n");
-}
-
-module_init(button_init);
-module_exit(button_exit);
Deleted: trunk/target/linux/modules/fpga/wishbone_example/wb_button/Wb_button/button.h
===================================================================
--- trunk/target/linux/modules/fpga/others/Wb_button/button.h 2009-03-02 16:14:50 UTC (rev 1105)
+++ trunk/target/linux/modules/fpga/wishbone_example/wb_button/Wb_button/button.h 2009-03-03 10:22:12 UTC (rev 1107)
@@ -1,124 +0,0 @@
-/*
- ***********************************************************************
- *
- * (c) Copyright 2007 Armadeus project
- * Fabien Marteau <fab...@ar...>
- * Driver for Wb_button IP
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- **********************************************************************
- */
-
-
-#ifndef __BUTTON_H__
-#define __BUTTON_H__
-
-#include "button_specific.h"
-
-#include <linux/version.h>
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
-#include <linux/config.h>
-#endif
-
-/* form module/drivers */
-#include <linux/init.h>
-#include <linux/module.h>
-
-/* for file operations */
-#include <linux/fs.h>
-#include <linux/cdev.h>
-
-/* copy_to_user function */
-#include <asm/uaccess.h>
-
-/* request_mem_region */
-#include <linux/ioport.h>
-
-/* readw() writew() */
-#include <asm/io.h>
-
-/* hardware addresses */
-#include <asm/hardware.h>
-
-/* interruptions */
-#include <linux/interrupt.h>
-#include <asm/irq.h>
-#include <linux/wait.h>
-#include <asm/semaphore.h>
-
-/* measure time */
-#include <linux/jiffies.h>
-#endif
-
-/* for debugging messages*/
-/*#define BUTTON_DEBUG*/
-
-#undef PDEBUG
-#ifdef BUTTON_DEBUG
-# ifdef __KERNEL__
- /* for kernel spage */
-# define PDEBUG(fmt,args...) printk(KERN_INFO "button : " fmt, ##args)
-# else
- /* for user space */
-# define PDEBUG(fmt,args...) printk(stderr, fmt, ##args)
-# endif
-#else
-# define PDEBUG(fmt,args...) /* no debbuging message */
-#endif
-
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Fabien Marteau <fab...@ar...> - ARMadeus Systems");
-MODULE_DESCRIPTION("button device driver");
-
-/* main device structure */
-struct button_dev{
- struct cdev cdev; /* Char device structure */
- struct semaphore sem; /* Mutex */
- void * fpga_virtual_base_address; /* fpga register base address*/
- wait_queue_head_t button_queue;
- u8 reading;
-};
-
-/* major and minor number */
-
-#define N_DEV 1
-static dev_t devno; /* to store Major and minor numbers */
-static struct button_dev *buttondev;
-#define BUTTON_LENGTH 1
-struct resource *mem; /* pointer to fpga button */
-
-
-/* to read write button register */
-ssize_t button_read(struct file *fildes, char __user *buff,
- size_t count, loff_t *offp);
-
-int button_open(struct inode *inode, struct file *filp);
-
-int button_release(struct inode *, struct file *filp);
-
-struct file_operations button_fops = {
- .owner = THIS_MODULE,
- .read = button_read,
- .open = button_open,
- .release = button_release,
-};
-
-static irqreturn_t fpga_interrupt(int irq,void *stuff,struct pt_regs *reg);
-
-static void free_all(void);
-
-static ssize_t button_fpga_read(void * addr, u16 *data , struct button_dev *dev);
-static ssize_t button_fpga_write(void * addr, u16 *data, struct button_dev *dev);
Deleted: trunk/target/linux/modules/fpga/wishbone_example/wb_button/Wb_button/button_specific.h
===================================================================
--- trunk/target/linux/modules/fpga/others/Wb_button/button_specific.h 2009-03-02 16:14:50 UTC (rev 1105)
+++ trunk/target/linux/modules/fpga/wishbone_example/wb_button/Wb_button/button_specific.h 2009-03-03 10:22:12 UTC (rev 1107)
@@ -1,14 +0,0 @@
-#define BUTTON_NAME "button"
-#define FPGA_BUTTON 8
-#define FPGA_IRQ_MASK 0
-#define FPGA_IRQ_PEND 2
-#define FPGA_IRQ_ACK 2
-
-/* Fpga base address for led */
-#define FPGA_BASE_ADDR IMX_CS1_PHYS
-#define FPGA_MEM_SIZE IMX_CS1_SIZE
-#define BUTTON_IRQ_NAME "button"
-
-/* interrupt position in irq_mngr */
-#define WB_BUTTON_IRQ 0x0001
-
Deleted: trunk/target/linux/modules/fpga/wishbone_example/wb_button/Wb_button/testbutton.c
===================================================================
--- trunk/target/linux/modules/fpga/others/Wb_button/testbutton.c 2009-03-02 16:14:50 UTC (rev 1105)
+++ trunk/target/linux/modules/fpga/wishbone_example/wb_button/Wb_button/testbutton.c 2009-03-03 10:22:12 UTC (rev 1107)
@@ -1,95 +0,0 @@
-
- * ***********************************************************************
-/* a program to write/read values on fpga address map
- * Fabien Marteau <fab...@ar...>
- * 7 april 2008
- * fpgaaccess.h
- *
- * (c) Copyright 2008 Armadeus project
- * Fabien Marteau <fab...@ar...>
- *
- * A simple driver for reading and writing on
- * fpga throught a character file /dev/fpgaaccess
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- **********************************************************************
- */
-
-
- *
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-
-/* file management */
-#include <sys/stat.h>
-#include <fcntl.h>
-
-/* as name said */
-#include <signal.h>
-
-/* sleep */
-#include <unistd.h>
-
-int fled;
-
-void quit(int pouet){
- close(fled);
- exit(0);
-}
-
-int main(int argc, char *argv[])
-{
- unsigned short i,j;
-
- /* quit when Ctrl-C pressed */
- signal(SIGINT, quit);
-
- j=0;
-
- printf( "Testing button driver\n" );
-
- if(argc < 2){
- perror("invalid arguments number\ntestled <button_filename>\n");
- exit(EXIT_FAILURE);
- }
-
- fled=open(argv[1],O_RDWR);
- if(fled<0){
- perror("can't open file\n");
- exit(EXIT_FAILURE);
- }
-
- while(1){
- i = (i==0)?1:0;
- fflush(stdout);
-
- /* read value */
- if(read(fled,&j,1)<0){
- perror("read error\n");
- exit(EXIT_FAILURE);
- }
- printf("Read %d\n",j);
-
- if(lseek(fled,0,SEEK_SET)<0){
- perror("lseek error\n");
- exit(EXIT_FAILURE);
- }
- }
-
- close(fled);
- exit(0);
-}
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