Re: strange problem with /dev/isdninfo
On Wed, 21 Mar 2001, Joern Heissler wrote: > I've got a strange problem with /dev/isdninfo: > > joern:~# cat /dev/isdninfo > idmap: Hisax... > chmap: 0 1 ... > > --> cat /dev/isdninfo works :-) > > Here's the problem: > > open("/dev/isdninfo", O_RDONLY) = 3 > read(3, "", 200) = 0 > > Could someone please tell me what's wrong? I (and some other people) do not >understand this. Well, /dev/isdninfo will only return the info to you if it entirely fits into the supplied buffer. So, you should try a read with 2048 bytes or so, and it'll work just fine. Not that I think that the current behavior is particularly smart, but that's how things are. --Kai - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: strange problem with /dev/isdninfo
On Wed, 21 Mar 2001, Joern Heissler wrote: I've got a strange problem with /dev/isdninfo: joern:~# cat /dev/isdninfo idmap: Hisax... chmap: 0 1 ... -- cat /dev/isdninfo works :-) Here's the problem: open("/dev/isdninfo", O_RDONLY) = 3 read(3, "", 200) = 0 Could someone please tell me what's wrong? I (and some other people) do not understand this. Well, /dev/isdninfo will only return the info to you if it entirely fits into the supplied buffer. So, you should try a read with 2048 bytes or so, and it'll work just fine. Not that I think that the current behavior is particularly smart, but that's how things are. --Kai - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/