On Sat, Jul 24, 2010 at 11:05 PM, Robert P. J. Day <[email protected]> wrote: > On Sat, 24 Jul 2010, Dave Hylands wrote: > >> Hi Robert, >> >> On Sat, Jul 24, 2010 at 6:25 AM, Robert P. J. Day wrote: >> > >> > (i'm sure i can eventually track this down, but maybe someone can >> > save me the time.) >> ...snip... >> > fair enough. now, however, i'd like to find (again, on my ubuntu >> > 10.04 system) an example driver that uses dynamic minor number >> > allocation and that's *not* built into the kernel so i can use that as >> > a demo of what happens when one loads such a driver. and, so far, i >> > haven't found an example like that yet -- every driver that does that >> > is, on this system, configured to be built into the kernel. >> > >> > anyone know of such an example? i briefly grep'ped thru drivers/ >> > for the macro MISC_DYNAMIC_MINOR but every example i saw was, on this >> > system, configured to be built into the kernel. >> >> I'm just in the process of upgrading to 10.04, so I don't have a >> definitive answer, but you could try the following >> >> cd /lib/modules/2.6.whatever >> grep -r misc_register * >> >> That seems to come up with quite a few potential candidates. > > true, but that doesn't distinguish between drivers that have a > reserved minor number, and those that request a dynamic one. i'm sure > there's a simple solution to this, i just don't know what it is.
I suggest to write your own char driver. It won't take more than 30 lines of code. thanks, Daniel. -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to [email protected] Please read the FAQ at http://kernelnewbies.org/FAQ
