Johannes, I finally sorted this out. The patch in question (c7ab5ef) is the bad one, but not the basic response rate part. Going back to the code that worked, I discovered that the routines b43_short_slot_timing_enable/disable() were never called. Once the new code touched the shared memory location 0x0010, the transmit performance dropped way off. If I let the new code adjust the Interframe Slot time in MMIO space, but not the shared memory location, the transmit rate in my BCM4311/2 went from a maximum of 18 to 22 Mb/s. This problem did not affect the 0x4315 device as the memory was changed only for G PHYs. I think that should be for 2GHz, and have made that adjustment. I have not yet tested that with the LP PHY. Once I do, I will post a patch for comment and testing. Thanks for helping me understand the basic response rates. Larry -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
