Messages in this thread | | | Subject | Verify system io addresses | From | Jeff.Fellin@rflelect ... | Date | Fri, 28 Jan 2005 12:10:51 -0500 |
| |
I want to develop a device driver that would allow access to board registers and memory that is addressable on the system bus. The reason for this is to allow hardware developers to access board registers while the system is running to determine what is wrong with a board. The problem I'm having is attempting to determine if an address is addressable and would not cause a system panic when accessing. I'm looking for functions similar to the verify_access for user addresses, or if that is not available a method to determine that an address fault in the kernel is actually due to a bad board address being used.
The driver has a user program that allows the hardware developers to peek and poke at address locations. So it is possible for them to mistype the address.
Thank you in advance for your help.
Jeff Fellin RFL Electronics Jeff.Fellin@rflelect.com 973 334-3100, x 327
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |