Re: Web camera USB bandwidth allocation

2017-08-23 Thread Alan Stern
On Wed, 23 Aug 2017, Martin Oprešnik wrote: > Hi, > > What happens when you try to use the fourth camera? > > I'm sorry I forgot to write whet the actual problem is. Error message is > "No space left on device". Based on what I read this means there it > can't allocate enough bandwidth. > > U

Re: Web camera USB bandwidth allocation

2017-08-23 Thread Martin Oprešnik
Hi, What happens when you try to use the fourth camera? I'm sorry I forgot to write whet the actual problem is. Error message is "No space left on device". Based on what I read this means there it can't allocate enough bandwidth. Using this command (cat /sys/kernel/debug/usb/devices | grep "

Re: Web camera USB bandwidth allocation

2017-08-22 Thread Felipe Balbi
Hi, Alan Stern writes: > On Tue, 22 Aug 2017, Martin Oprešnik wrote: > >> Hello, >> >> we are working on a project, where we need multiple cameras connected to >> embedded computer. For computer we have chosen odroid XU4 and for >> cameras Logitech C920. We need at least 5 cameras running wit

Re: Web camera USB bandwidth allocation

2017-08-22 Thread Alan Stern
On Tue, 22 Aug 2017, Martin Oprešnik wrote: > Hello, > > we are working on a project, where we need multiple cameras connected to > embedded computer. For computer we have chosen odroid XU4 and for > cameras Logitech C920. We need at least 5 cameras running with 720p. The > problem we have is