dmesg-log

 3554.801664] pru-rproc2 4a300000.prurproc: #8 PRU interrupts registered
[ 3554.801865] pru-rproc2 4a300000.prurproc: sysevent-to-channel-map [17] <- 1
[ 3554.801906] pru-rproc2 4a300000.prurproc: sysevent-to-channel-map [18] <- 0
[ 3554.801944] pru-rproc2 4a300000.prurproc: sysevent-to-channel-map [19] <- 2
[ 3554.801981] pru-rproc2 4a300000.prurproc: sysevent-to-channel-map [20] <- 3
[ 3554.802018] pru-rproc2 4a300000.prurproc: sysevent-to-channel-map [21] <- 0
[ 3554.802054] pru-rproc2 4a300000.prurproc: sysevent-to-channel-map [22] <- 1
[ 3554.802090] pru-rproc2 4a300000.prurproc: sysevent-to-channel-map [24] <- 4
[ 3554.802127] pru-rproc2 4a300000.prurproc: sysevent-to-channel-map [25] <- 5
[ 3554.802162] pru-rproc2 4a300000.prurproc: sysevent-to-channel-map [26] <- 6
[ 3554.802198] pru-rproc2 4a300000.prurproc: sysevent-to-channel-map [27] <- 7
[ 3554.802250] pru-rproc2 4a300000.prurproc: channel-to-host-interrupt-map [0] <- 0
[ 3554.802288] pru-rproc2 4a300000.prurproc: channel-to-host-interrupt-map [1] <- 1
[ 3554.802324] pru-rproc2 4a300000.prurproc: channel-to-host-interrupt-map [2] <- 2
[ 3554.802361] pru-rproc2 4a300000.prurproc: channel-to-host-interrupt-map [3] <- 3
[ 3554.802581] pru-rproc2 4a300000.prurproc: channel-to-host-interrupt-map [4] <- 0
[ 3554.802623] pru-rproc2 4a300000.prurproc: channel-to-host-interrupt-map [5] <- 6
[ 3554.802660] pru-rproc2 4a300000.prurproc: channel-to-host-interrupt-map [6] <- 1
[ 3554.802697] pru-rproc2 4a300000.prurproc: channel-to-host-interrupt-map [7] <- 7
[ 3554.802775] pru-rproc2 4a300000.prurproc: found #2 PRUs
[ 3554.808647] pru-rproc2 4a300000.prurproc: No resource-table node node; slave PRU
[ 3554.808779] pru-rproc2 4a300000.prurproc: PRU0 #1 vdevs, #2 vrings total
[ 3554.809326]  remoteproc0: 4a300000.prurproc is available
[ 3554.809362]  remoteproc0: Note: remoteproc is still under development and considered experimental.
[ 3554.809391]  remoteproc0: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.
[ 3554.812371]  remoteproc0: powering up 4a300000.prurproc
[ 3554.815422]  remoteproc0: Booting fw image pru1_firmware, size 15700
[ 3554.815644]  remoteproc0: PRU#1 bootcnt=0
[ 3554.815676]  remoteproc0: PRU#1 entry-point 0x0
[ 3554.815705]  remoteproc0: remote processor 4a300000.prurproc is now up
[ 3554.815956]  remoteproc1: 4a300000.prurproc is available
[ 3554.815987]  remoteproc1: Note: remoteproc is still under development and considered experimental.
[ 3554.816016]  remoteproc1: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.
[ 3554.817634] pru-rproc2 4a300000.prurproc: Loaded OK
[ 3554.821604]  remoteproc1: powering up 4a300000.prurproc
[ 3554.821687]  remoteproc1: Booting fw image pru0_firmware, size 41472
[ 3554.821771]  remoteproc1: PRU#0 bootcnt=0
[ 3554.821802]  remoteproc1: PRU#0 entry-point 0xe48
[ 3554.821829] resource_table @de33d250
[ 3554.821852]  .ver = 0x00000001
[ 3554.821873]  .num = 0x00000001
[ 3554.821899]   rsc_hdr#0: .type = 0x00000003
[ 3554.822093]   VDEV:
[ 3554.822119]    .id = 0x0000000b
[ 3554.822142]    .notifyid = 0x00000008
[ 3554.822165]    .dfeatures = 0x00000000
[ 3554.822187]    .gfeatures = 0x00000000
[ 3554.822209]    .config_len = 0x00000000
[ 3554.822230]    .status = 0x00
[ 3554.822251]    .num_of_vrings = 0x02
[ 3554.822272]    VRING #0:
[ 3554.822294]      .da = 0x00000000
[ 3554.822315]      .align = 0x00000010
[ 3554.822336]      .num = 0x00000008
[ 3554.822357]      .notifyid = 0x00000000
[ 3554.822378]    VRING #1:
[ 3554.822399]      .da = 0x00000000
[ 3554.822420]      .align = 0x00000010
[ 3554.822442]      .num = 0x00000008
[ 3554.822463]      .notifyid = 0x00000000
[ 3554.822504]  remoteproc1: VDEV#0 VR#0 da=0x9e340000 notifyid=0x00000000
[ 3554.822538]  remoteproc1: VDEV#0 VR#1 da=0x9e341000 notifyid=0x00000001
[ 3554.822562] resource_table @e09e5000
[ 3554.822584]  .ver = 0x00000001
[ 3554.822606]  .num = 0x00000001
[ 3554.822633]   rsc_hdr#0: .type = 0x00000003
[ 3554.822654]   VDEV:
[ 3554.822676]    .id = 0x0000000b
[ 3554.822698]    .notifyid = 0x00000008
[ 3554.822720]    .dfeatures = 0x00000000
[ 3554.822743]    .gfeatures = 0x00000000
[ 3554.822766]    .config_len = 0x00000000
[ 3554.822787]    .status = 0x00
[ 3554.822808]    .num_of_vrings = 0x02
[ 3554.822829]    VRING #0:
[ 3554.822852]      .da = 0x9e340000
[ 3554.822874]      .align = 0x00000010
[ 3554.822896]      .num = 0x00000008
[ 3554.822918]      .notifyid = 0x00000000
[ 3554.822940]    VRING #1:
[ 3554.822962]      .da = 0x9e341000
[ 3554.822985]      .align = 0x00000010
[ 3554.823007]      .num = 0x00000008
[ 3554.823030]      .notifyid = 0x00000001
[ 3554.823058]  remoteproc1: remote processor 4a300000.prurproc is now up
[ 3554.824205]  remoteproc1: registered virtio0 (type 11)
[ 3554.824351] pru-rproc2 4a300000.prurproc: pru_proc probe completed
[ 3554.827335] entering pru_speak_probe
[ 3554.827376] ps_dev allocated : df4958c0
[ 3554.827401] call made to pruspeak_get_pdev_rproc
[ 3554.827428] entering shm allocation
[ 3554.827451] Initializing shm #0Initializing shm #1
[ 3554.827512] SHM initalization sequence is now complete
[ 3554.833887] bone-capemgr bone_capemgr.9: slot #9: Applied #2 overlays.