I agree that a good knowledge of c is a prerequisite for this kind of programming, but this is my first semester in theis masters program, and they threw us into the deep end pretty quickly. I had a c class about 8 years ago and have forgotten a lot of it. I am also taking a c++ class this summer, but it isn't getting into any of this stuff yet. -----Original Message----- From: Jason White [mailto:jason@xxxxxxxxxxxx] Sent: Thursday, July 18, 2013 10:51 PM To: speakup at linux-speakup.org Subject: Re: OT: kernel oops Don Raikes <don.raikes at oracle.com> wrote: > Ok so I get it, but the problem is that I am hooking into the sys_write systemcall, and it is by default cast to a const. > > If I leave it as is, and cast the buf in my copy_to_user to a (char*) should that work? > Try (void __user *) which according to Linux Device Drivers is the correct type for copy_to_user. > Sorry my knowledge of c is very limited :) I would suggest reading a good book on the subject in that case. A good knowledge of C is a prerequisite for what you are doing. _______________________________________________ Speakup mailing list Speakup at linux-speakup.org http://linux-speakup.org/cgi-bin/mailman/listinfo/speakup
