On 01/31/2016 08:14 PM, kernel test robot wrote: > FYI, we noticed the below changes on > > https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git devel > commit 1b06d64f73746c30ddba43bb57c30ba9a126f53b ("gpio: Add GPIO support for > the ACCES 104-DIO-48E") > > With your commit, there are the following new messages in kernel log. > > [ 6.176052] 104-dio-48e 104-dio-48e: Unable to lock 104-dio-48e port > addresses (0x0-0x10) > [ 6.176052] 104-dio-48e 104-dio-48e: Unable to lock 104-dio-48e port > addresses (0x0-0x10) > [ 6.177538] 104-dio-48e: probe of 104-dio-48e failed with error -16 > [ 6.177538] 104-dio-48e: probe of 104-dio-48e failed with error -16 > [ 6.178846] 104-idi-48 104-idi-48: Unable to lock 104-idi-48 port > addresses (0x0-0x8) > [ 6.178846] 104-idi-48 104-idi-48: Unable to lock 104-idi-48 port > addresses (0x0-0x8) > [ 6.180359] 104-idi-48: probe of 104-idi-48 failed with error -16 > [ 6.180359] 104-idi-48: probe of 104-idi-48 failed with error -16 > > Thanks, > Ying Huang
This behavior is expected for the 104-dio-48e module and 104-idi-48 module: base port address for the hardware must be manually set by the user since the hardware lacks discovery functionality. William Breathitt Gray
