BBB SPI device tree overlay, device number confusion

[Matt Graham]

I think I posted to the wrong section of the group.  Apologies for this repost.

Running the latest angstrom image, with update, upgrade.  Installing BB-SPIDEV0 seems to produce /dev/spidev1 which doesn't seem right.

I was expecting /dev/spidev0 based on this http://elinux.org/BeagleBone_Black_Enable_SPIDEV#SPI0

Any ideas on this problem?

root@beaglebone:~# find /dev -iname *spi*

root@beaglebone:~# cat /sys/devices/bone_capemgr.*/slots

 0: 54:PF---

 1: 55:PF---

 2: 56:PF---

 3: 57:PF---

 4: ff:P-O-L Bone-LT-eMMC-2G,00A0,Texas Instrument,BB-BONE-EMMC-2G

 5: ff:P-O-L Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI

root@beaglebone:~# echo BB-SPIDEV0 > /sys/devices/bone_capemgr.*/slots

root@beaglebone:~# cat /sys/devices/bone_capemgr.*/slots

 0: 54:PF---

 1: 55:PF---

 2: 56:PF---

 3: 57:PF---

 4: ff:P-O-L Bone-LT-eMMC-2G,00A0,Texas Instrument,BB-BONE-EMMC-2G

 5: ff:P-O-L Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI

 7: ff:P-O-L Override Board Name,00A0,Override Manuf,BB-SPIDEV0

root@beaglebone:~# find /dev -iname *spi*

/dev/spidev1.0

/dev/spidev1.1

root@beaglebone:~#

[Steve French]

Matt,

I agree!!!  It is very confusing, especially when you are trying to figure out which pin to probe!!

-frenchy

[axo...@gmail.com]

I see the same problems. Guys, will it work though using the pins described for spi0?

[Matt Graham]

It's been a while since I was tinkering with this, but as I recall, the pin designations were as expected.

Is your SPI not working?

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[Akos Vandra]

Don't know, I don't have the hardware to connect to yet