{var%20f='http://v.t.sina.com.cn/share/share.php?appkey=1515056452',u=z||d.location,p=['&url=',e(u),'&title=',e(t||d.title),'&source=',e(r),'&sourceUrl=',e(l),'&content=',c||'gb2312','&pic=',e(p||'')].join('');function%20a(){if(!window.open([f,p].join(''),'mb',['toolbar=0,status=0,resizable=1,width=440,height=430,left=',(s.width-440)/2,',top=',(s.height-430)/2].join('')))u.href=[f,p].join('');};if(/Firefox/.test(navigator.userAgent))setTimeout(a,0);else%20a();})(screen,document,encodeURIComponent,'','','https://www.manongdao.com/data/attach/logo/logo.png', '推荐 你好瞎i 的问题《Resource temporarily unavailable ttyS3》','https://www.manongdao.com/q-1012960.html','页面编码gb2312|utf-8默认gb2312'));){kind=link}
I have a embedded system with serial configured as ttyS3,I'm trying to start getty using
`/sbin/getty -L ttyS3 115200 vt100 -H HOME -u root -a`
but its failed to start session with login after that I have tried
$ cat /dev/ttyS3
cat: can't open '/dev/ttyS3': Resource temporarily unavailable
but I'm getting error like '/dev/ttyS3': Resource temporarily unavailable,so is there any way to find out which process is using this resource (/dev/ttyS3)?
Use
lsof- it lists all the open files. For your purpose do the following -this will show which process holds up this resource.