晋太元中,武陵人捕鱼为业。缘溪行,忘路之远近。忽逢桃花林,夹岸数百步,中无杂树,芳草鲜美,落英缤纷。渔人甚异之,复前行,欲穷其林。 林尽水源,便得一山,山有小口,仿佛若有光。便舍船,从口入。初极狭,才通人。复行数十步,豁然开朗。土地平旷,屋舍俨然,有良田、美池、桑竹之属。阡陌交通,鸡犬相闻。其中往来种作,男女衣着,悉如外人。黄发垂髫,并怡然自乐。 见渔人,乃大惊,问所从来。具答之。便要还家,设酒杀鸡作食。村中闻有此人,咸来问讯。自云先世避秦时乱,率妻子邑人来此绝境,不复出焉,遂与外人间隔。问今是何世,乃不知有汉,无论魏晋。此人一一为具言所闻,皆叹惋。余人各复延至其家,皆出酒食。停数日,辞去。此中人语云:“不足为外人道也。”(间隔 一作:隔绝) 既出,得其船,便扶向路,处处志之。及郡下,诣太守,说如此。太守即遣人随其往,寻向所志,遂迷,不复得路。 南阳刘子骥,高尚士也,闻之,欣然规往。未果,寻病终。后遂无问津者。
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/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/*
* Copyright (C) 2005-2007 Jiri Slaby <jirislaby@gmail.com>
*
* 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 of the License, or
* (at your option) any later version.
*/
#ifndef __PHANTOM_H
#define __PHANTOM_H
#include <linux/types.h>
/* PHN_(G/S)ET_REG param */
struct phm_reg {
__u32 reg;
__u32 value;
};
/* PHN_(G/S)ET_REGS param */
struct phm_regs {
__u32 count;
__u32 mask;
__u32 values[8];
};
#define PH_IOC_MAGIC 'p'
#define PHN_GET_REG _IOWR(PH_IOC_MAGIC, 0, struct phm_reg *)
#define PHN_SET_REG _IOW(PH_IOC_MAGIC, 1, struct phm_reg *)
#define PHN_GET_REGS _IOWR(PH_IOC_MAGIC, 2, struct phm_regs *)
#define PHN_SET_REGS _IOW(PH_IOC_MAGIC, 3, struct phm_regs *)
/* this ioctl tells the driver, that the caller is not OpenHaptics and might
* use improved registers update (no more phantom switchoffs when using
* libphantom) */
#define PHN_NOT_OH _IO(PH_IOC_MAGIC, 4)
#define PHN_GETREG _IOWR(PH_IOC_MAGIC, 5, struct phm_reg)
#define PHN_SETREG _IOW(PH_IOC_MAGIC, 6, struct phm_reg)
#define PHN_GETREGS _IOWR(PH_IOC_MAGIC, 7, struct phm_regs)
#define PHN_SETREGS _IOW(PH_IOC_MAGIC, 8, struct phm_regs)
#define PHN_CONTROL 0x6 /* control byte in iaddr space */
#define PHN_CTL_AMP 0x1 /* switch after torques change */
#define PHN_CTL_BUT 0x2 /* is button switched */
#define PHN_CTL_IRQ 0x10 /* is irq enabled */
#define PHN_ZERO_FORCE 2048 /* zero torque on motor */
#endif