Hello,
I’ve got a BBB running Debian Jessie and kernel 4.1.
I’ve got an LCD4 cape that is up and running. The backlight for the LCD uses EHRPWM1A.
I have a buzzer that is connected to EHRPWM1B (P9-16).
Following Robert’s examples here and here I was able to control the backlight for my LCD (with no data on the LCD) as well as the buzzer. I have modified the period of the backlight to match what my buzzer uses. This has been tested and doesn’t give any issues.
I’m running into trouble combining them. I’ve tried modifying the LCD overlay to include the second PWM pin. This did not give the desired results, because it eliminated the control for the backlight.
I have also modified the BACONE overlay to include just EHRPWM1B. This appears to get me closer to what I need. Both overlays are accepted, I can control the buzzer on its own, AND the /sys/class/backlight/backlight control is also created and available. As far as I can tell my LCD should be functioning without issue, however, my LCD screen is blank.
My graphical applicatiion is written in Qt. I do not have X installed, the Qt application writes directly to fb0.
My guess is that I don’t understand something about the interactions between the OS creating the /sys/class/backlight entry and the exported PWM control.
Below is the output from dmesg. I don’t see anything in here that raises any particular flags.
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Initializing cgroup subsys cpuacct
[ 0.000000] Linux version 4.1.18-bone19 (root@a5-imx6q-wandboard-2gb) (gcc version 4.9.2 (Debian 4.9.2-10) ) #1 Wed Feb 17 00:04:55 UTC 2016
[ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=50c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] Machine model: TI AM335x BeagleBone Black
[ 0.000000] cma: Reserved 24 MiB at 0x9e800000
[ 0.000000] Memory policy: Data cache writeback
[ 0.000000] On node 0 totalpages: 131072
[ 0.000000] free_area_init_node: node 0, pgdat c0aac990, node_mem_map de36d000
[ 0.000000] Normal zone: 1152 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 131072 pages, LIFO batch:31
[ 0.000000] CPU: All CPU(s) started in SVC mode.
[ 0.000000] AM335X ES2.1 (sgx neon )
[ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=132768
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 129920
[ 0.000000] Kernel command line: console=ttyO0,115200n8 bone_capemgr.enable_partno= root=UUID=d62d8429-18f4-41d5-aa8e-15316bb567c0 ro rootfstype=ext4 rootwait coherent_pool=1M quiet cape_universal=disable
[ 0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 0.000000] Memory: 478092K/524288K available (6305K kernel code, 814K rwdata, 3444K rodata, 448K init, 845K bss, 21620K reserved, 24576K cma-reserved, 0K highmem)
[ 0.000000] Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0xe0800000 - 0xff000000 ( 488 MB)
lowmem : 0xc0000000 - 0xe0000000 ( 512 MB)
pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
modules : 0xbf800000 - 0xbfe00000 ( 6 MB)
.text : 0xc0008000 - 0xc098d730 (9750 kB)
.init : 0xc098e000 - 0xc09fe000 ( 448 kB)
.data : 0xc09fe000 - 0xc0ac9b18 ( 815 kB)
.bss : 0xc0acc000 - 0xc0b9f544 ( 846 kB)
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts
[ 0.000000] OMAP clockevent source: timer2 at 24000000 Hz
[ 0.000011] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[ 0.000029] clocksource timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[ 0.000038] OMAP clocksource: timer1 at 24000000 Hz
[ 0.000278] Console: colour dummy device 80x30
[ 0.000300] WARNING: Your ‘console=ttyO0’ has been replaced by ‘ttyS0’
[ 0.000306] This ensures that you still see kernel messages. Please
[ 0.000311] update your kernel commandline.
[ 0.000326] Calibrating delay loop… 996.14 BogoMIPS (lpj=4980736)
[ 0.089214] pid_max: default: 32768 minimum: 301
[ 0.089318] Security Framework initialized
[ 0.089390] AppArmor: AppArmor disabled by boot time parameter
[ 0.089397] Yama: becoming mindful.
[ 0.089566] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.089576] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.090180] Initializing cgroup subsys blkio
[ 0.090202] Initializing cgroup subsys memory
[ 0.090238] Initializing cgroup subsys devices
[ 0.090253] Initializing cgroup subsys freezer
[ 0.090269] Initializing cgroup subsys net_cls
[ 0.090281] Initializing cgroup subsys perf_event
[ 0.090292] Initializing cgroup subsys net_prio
[ 0.090332] CPU: Testing write buffer coherency: ok
[ 0.090379] ftrace: allocating 31657 entries in 62 pages
[ 0.155990] Setting up static identity map for 0x800081c0 - 0x8000820c
[ 0.159651] devtmpfs: initialized
[ 0.172159] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
[ 0.179995] omap_hwmod: tptc0 using broken dt data from edma
[ 0.180089] omap_hwmod: tptc1 using broken dt data from edma
[ 0.180170] omap_hwmod: tptc2 using broken dt data from edma
[ 0.184365] omap_hwmod: debugss: _wait_target_disable failed
[ 0.238939] clocksource jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.240854] xor: measuring software checksum speed
[ 0.339184] arm4regs : 1245.600 MB/sec
[ 0.439183] 8regs : 1114.000 MB/sec
[ 0.539182] 32regs : 1112.800 MB/sec
[ 0.639181] neon : 1810.000 MB/sec
[ 0.639187] xor: using function: neon (1810.000 MB/sec)
[ 0.639353] pinctrl core: initialized pinctrl subsystem
[ 0.640403] NET: Registered protocol family 16
[ 0.643190] DMA: preallocated 1024 KiB pool for atomic coherent allocations
[ 0.643903] cpuidle: using governor ladder
[ 0.643917] cpuidle: using governor menu
[ 0.646682] OMAP GPIO hardware version 0.1
[ 0.654330] No ATAGs?
[ 0.654355] hw-breakpoint: debug architecture 0x4 unsupported.
[ 0.829250] raid6: int32x1 gen() 269 MB/s
[ 0.999270] raid6: int32x1 xor() 246 MB/s
[ 1.169219] raid6: int32x2 gen() 356 MB/s
[ 1.339282] raid6: int32x2 xor() 273 MB/s
[ 1.509211] raid6: int32x4 gen() 405 MB/s
[ 1.679288] raid6: int32x4 xor() 261 MB/s
[ 1.849239] raid6: int32x8 gen() 358 MB/s
[ 2.019215] raid6: int32x8 xor() 232 MB/s
[ 2.189197] raid6: neonx1 gen() 1471 MB/s
[ 2.359189] raid6: neonx2 gen() 1889 MB/s
[ 2.529206] raid6: neonx4 gen() 1981 MB/s
[ 2.699211] raid6: neonx8 gen() 669 MB/s
[ 2.699218] raid6: using algorithm neonx4 gen() 1981 MB/s
[ 2.699224] raid6: using intx1 recovery algorithm
[ 2.705589] edma-dma-engine edma-dma-engine.0: TI EDMA DMA engine driver
[ 2.709250] SCSI subsystem initialized
[ 2.709521] libata version 3.00 loaded.
[ 2.709805] usbcore: registered new interface driver usbfs
[ 2.709869] usbcore: registered new interface driver hub
[ 2.709936] usbcore: registered new device driver usb
[ 2.710378] omap_i2c 44e0b000.i2c: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_i2c0_pins, deferring probe
[ 2.710419] omap_i2c 4819c000.i2c: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_i2c2_pins, deferring probe
[ 2.710508] media: Linux media interface: v0.10
[ 2.710557] Linux video capture interface: v2.00
[ 2.710648] pps_core: LinuxPPS API ver. 1 registered
[ 2.710654] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti
[ 2.710677] PTP clock support registered
[ 2.711223] omap-mailbox 480c8000.mailbox: omap mailbox rev 0x400
[ 2.712190] NetLabel: Initializing
[ 2.712201] NetLabel: domain hash size = 128
[ 2.712205] NetLabel: protocols = UNLABELED CIPSOv4
[ 2.712255] NetLabel: unlabeled traffic allowed by default
[ 2.712737] Switched to clocksource timer1
[ 2.782725] NET: Registered protocol family 2
[ 2.783478] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
[ 2.783521] TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
[ 2.783558] TCP: Hash tables configured (established 4096 bind 4096)
[ 2.783627] UDP hash table entries: 256 (order: 0, 4096 bytes)
[ 2.783642] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[ 2.783793] NET: Registered protocol family 1
[ 2.784189] RPC: Registered named UNIX socket transport module.
[ 2.784199] RPC: Registered udp transport module.
[ 2.784205] RPC: Registered tcp transport module.
[ 2.784210] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 2.784620] Unpacking initramfs…
[ 3.064038] Freeing initrd memory: 4396K (cfbb5000 - d0000000)
[ 3.064570] CPU PMU: Failed to parse /pmu/interrupt-affinity[0]
[ 3.064611] hw perfevents: enabled with armv7_cortex_a8 PMU driver, 5 counters available
[ 3.066522] futex hash table entries: 256 (order: -1, 3072 bytes)
[ 3.066624] audit: initializing netlink subsys (disabled)
[ 3.066706] audit: type=2000 audit(3.020:1): initialized
[ 3.067862] zpool: loaded
[ 3.067879] zbud: loaded
[ 3.068120] VFS: Disk quotas dquot_6.6.0
[ 3.068179] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 3.068682] NFS: Registering the id_resolver key type
[ 3.068743] Key type id_resolver registered
[ 3.068749] Key type id_legacy registered
[ 3.068772] nfs4filelayout_init: NFSv4 File Layout Driver Registering…
[ 3.069023] fuse init (API version 7.23)
[ 3.069209] SGI XFS with ACLs, security attributes, realtime, no debug enabled
[ 3.070766] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[ 3.070904] io scheduler noop registered
[ 3.070916] io scheduler deadline registered
[ 3.070949] io scheduler cfq registered (default)
[ 3.071976] pinctrl-single 44e10800.pinmux: 142 pins at pa f9e10800 size 568
[ 3.073464] Serial: 8250/16550 driver, 6 ports, IRQ sharing disabled
[ 3.075630] 44e09000.serial: ttyS0 at MMIO 0x44e09000 (irq = 154, base_baud = 3000000) is a 8250
[ 3.076063] console [ttyS0] enabled
[ 3.077018] [drm] Initialized drm 1.1.0 20060810
[ 3.078000] usbcore: registered new interface driver dln2
[ 3.079825] ehci_hcd: USB 2.0 ‘Enhanced’ Host Controller (EHCI) Driver
[ 3.079860] ehci-platform: EHCI generic platform driver
[ 3.080003] ehci-omap: OMAP-EHCI Host Controller driver
[ 3.081320] 47401300.usb-phy supply vcc not found, using dummy regulator
[ 3.083257] musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, bulk combine, bulk split, HB-ISO Rx, HB-ISO Tx, SoftConn)
[ 3.083270] musb-hdrc: MHDRC RTL version 2.0
[ 3.083277] musb-hdrc: setup fifo_mode 4
[ 3.083294] musb-hdrc: 28/31 max ep, 16384/16384 memory
[ 3.084245] 47401b00.usb-phy supply vcc not found, using dummy regulator
[ 3.085984] musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, bulk combine, bulk split, HB-ISO Rx, HB-ISO Tx, SoftConn)
[ 3.085995] musb-hdrc: MHDRC RTL version 2.0
[ 3.086001] musb-hdrc: setup fifo_mode 4
[ 3.086012] musb-hdrc: 28/31 max ep, 16384/16384 memory
[ 3.086097] musb-hdrc musb-hdrc.1.auto: MUSB HDRC host driver
[ 3.086326] musb-hdrc musb-hdrc.1.auto: new USB bus registered, assigned bus number 1
[ 3.086486] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 3.086498] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 3.086506] usb usb1: Product: MUSB HDRC host driver
[ 3.086514] usb usb1: Manufacturer: Linux 4.1.18-bone19 musb-hcd
[ 3.086522] usb usb1: SerialNumber: musb-hdrc.1.auto
[ 3.087089] hub 1-0:1.0: USB hub found
[ 3.087126] hub 1-0:1.0: 1 port detected
[ 3.094950] mousedev: PS/2 mouse device common for all mice
[ 3.096452] omap_rtc 44e3e000.rtc: rtc core: registered 44e3e000.rtc as rtc0
[ 3.096942] i2c /dev entries driver
[ 3.098485] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[ 3.098853] sdhci: Secure Digital Host Controller Interface driver
[ 3.098860] sdhci: Copyright© Pierre Ossman
[ 3.099226] omap_hsmmc 48060000.mmc: Got CD GPIO
[ 3.183148] sdhci-pltfm: SDHCI platform and OF driver helper
[ 3.183194] ledtrig-cpu: registered to indicate activity on CPUs
[ 3.183281] hidraw: raw HID events driver © Jiri Kosina
[ 3.184169] usbcore: registered new interface driver usbhid
[ 3.184177] usbhid: USB HID core driver
[ 3.184384] ashmem: initialized
[ 3.186009] oprofile: using arm/armv7
[ 3.186373] NET: Registered protocol family 10
[ 3.188269] mip6: Mobile IPv6
[ 3.188292] NET: Registered protocol family 17
[ 3.188405] Key type dns_resolver registered
[ 3.188418] mpls_gso: MPLS GSO support
[ 3.188683] omap_voltage_late_init: Voltage driver support not added
[ 3.197586] cpu cpu0: of_pm_voltdm_notifier_register: Failed to get cpu0 regulator/voltdm: -517
[ 3.197601] cpu cpu0: cpu0 clock notifier not ready, retry
[ 3.203362] ThumbEE CPU extension supported.
[ 3.203387] Registering SWP/SWPB emulation handler
[ 3.204206] registered taskstats version 1
[ 3.205173] Btrfs loaded
[ 3.224864] Key type encrypted registered
[ 3.226553] input: tps65217_pwr_but as /devices/platform/ocp/44e0b000.i2c/i2c-0/0-0024/input/input0
[ 3.247462] mmc1: MAN_BKOPS_EN bit is not set
[ 3.249572] tps65217 0-0024: TPS65217 ID 0xe version 1.2
[ 3.249970] at24 0-0050: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[ 3.250004] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz
[ 3.251276] at24 2-0054: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[ 3.251559] at24 2-0055: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[ 3.251940] at24 2-0056: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[ 3.252211] at24 2-0057: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[ 3.252239] omap_i2c 4819c000.i2c: bus 2 rev0.11 at 100 kHz
[ 3.255049] mmc1: new high speed MMC card at address 0001
[ 3.255589] mmcblk0: mmc1:0001 S10004 3.56 GiB
[ 3.255827] mmcblk0boot0: mmc1:0001 S10004 partition 1 4.00 MiB
[ 3.256007] mmcblk0boot1: mmc1:0001 S10004 partition 2 4.00 MiB
[ 3.256920] mmcblk0: p1
[ 3.258832] bone_capemgr bone_capemgr: Baseboard: ‘A335BNLT,000C,1915BBBK0510’
[ 3.258858] bone_capemgr bone_capemgr: compatible-baseboard=ti,beaglebone-black - #slots=4
[ 3.312755] bone_capemgr bone_capemgr: slot #0: No cape found
[ 3.372756] bone_capemgr bone_capemgr: slot #1: No cape found
[ 3.432746] bone_capemgr bone_capemgr: slot #2: No cape found
[ 3.482750] usb 1-1: new high-speed USB device number 2 using musb-hdrc
[ 3.492748] bone_capemgr bone_capemgr: slot #3: No cape found
[ 3.498584] bone_capemgr bone_capemgr: initialized OK.
[ 3.499042] cpu cpu0: of_pm_voltdm_notifier_register: Fail calculating voltage latency[950000<->1325000]:-22
[ 3.499341] cpu cpu0: of_pm_voltdm_notifier_register: Fail calculating voltage latency[950000<->1325000]:-22
[ 3.562760] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6
[ 3.562776] davinci_mdio 4a101000.mdio: detected phy mask fffffffe
[ 3.563057] davinci_mdio: dt: updated phy_id[0] from phy_mask[fffffffe]
[ 3.563080] davinci_mdio: dt: updated phy_id[1] from phy_mask[fffffffe]
[ 3.567917] libphy: 4a101000.mdio: probed
[ 3.567946] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00, driver SMSC LAN8710/LAN8720
[ 3.568620] cpsw 4a100000.ethernet: Detected MACID = d0:39:72:2d:da:52
[ 3.569877] omap_rtc 44e3e000.rtc: setting system clock to 2000-01-01 00:00:01 UTC (946684801)
[ 3.569903] of_cfs_init
[ 3.569979] of_cfs_init: OK
[ 3.573272] PM: Hibernation image not present or could not be loaded.
[ 3.574149] Freeing unused kernel memory: 448K (c098e000 - c09fe000)
[ 3.623020] usb 1-1: New USB device found, idVendor=0424, idProduct=2514
[ 3.623040] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 3.623711] hub 1-1:1.0: USB hub found
[ 3.623793] hub 1-1:1.0: 4 ports detected
[ 3.746219] systemd-udevd[89]: starting version 215
[ 3.747907] random: systemd-udevd urandom read with 20 bits of entropy available
[ 4.367122] EXT4-fs (mmcblk0p1): mounted filesystem with ordered data mode. Opts: (null)
[ 4.815078] systemd[1]: Cannot add dependency job for unit display-manager.service, ignoring: Unit display-manager.service failed to load: No such file or directory.
[ 4.902829] usb 1-1.1: new full-speed USB device number 3 using musb-hdrc
[ 4.993990] EXT4-fs (mmcblk0p1): re-mounted. Opts: errors=remount-ro
[ 5.004125] usb 1-1.1: New USB device found, idVendor=05e0, idProduct=1701
[ 5.004146] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 5.004155] usb 1-1.1: Product: Symbol Bar Code Scanner
[ 5.004164] usb 1-1.1: Manufacturer: Symbol Technologies, Inc, 2008
[ 5.004172] usb 1-1.1: SerialNumber: S/N:Motorola Scanner***********
[ 5.436008] systemd-udevd[169]: starting version 215
[ 5.681840] systemd-journald[168]: Received request to flush runtime journal from PID 1
[ 6.074460] cdc_acm 1-1.1:1.0: ttyACM0: USB ACM device
[ 6.075587] usbcore: registered new interface driver cdc_acm
[ 6.075601] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[ 6.254934] davinci-mcasp 48038000.mcasp: invalid tdm slots: 0
[ 6.303609] davinci-mcasp 4803c000.mcasp: invalid tdm slots: 0
[ 6.417435] omap_rng 48310000.rng: OMAP Random Number Generator ver. 20
[ 6.438422] omap-aes 53500000.aes: OMAP AES hw accel rev: 3.2
[ 6.459777] omap-sham 53100000.sham: hw accel on OMAP rev 4.3
[ 6.459809] omap-sham 53100000.sham: initialization failed.
[ 6.492062] omap-sham: probe of 53100000.sham failed with error -22
[ 7.019532] net eth0: initializing cpsw version 1.12 (0)
[ 7.021923] net eth0: phy found : id is : 0x7c0f1
[ 7.021994] libphy: PHY 4a101000.mdio:01 not found
[ 7.026896] net eth0: phy 4a101000.mdio:01 not found on slave 1
[ 7.038555] net eth0: BQL enabled
[ 7.042668] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 7.578277] bone_capemgr bone_capemgr: part_number ‘BB-UART2’, version ‘N/A’
[ 7.578306] bone_capemgr bone_capemgr: slot #4: override
[ 7.578320] bone_capemgr bone_capemgr: Using override eeprom data at slot 4
[ 7.578335] bone_capemgr bone_capemgr: slot #4: ‘Override Board Name,00A0,Override Manuf,BB-UART2’
[ 7.593104] 48024000.serial: ttyS2 at MMIO 0x48024000 (irq = 186, base_baud = 3000000) is a 8250
[ 7.594485] bone_capemgr bone_capemgr: slot #4: dtbo ‘BB-UART2-00A0.dtbo’ loaded; overlay id #0
[ 7.594839] bone_capemgr bone_capemgr: part_number ‘BB-BONE-LCD4-01’, version ‘00A2’
[ 7.594857] bone_capemgr bone_capemgr: slot #5: override
[ 7.594871] bone_capemgr bone_capemgr: Using override eeprom data at slot 5
[ 7.594887] bone_capemgr bone_capemgr: slot #5: ‘Override Board Name,00A2,Override Manuf,BB-BONE-LCD4-01’
[ 7.620406] bone_capemgr bone_capemgr: slot #5: dtbo ‘BB-BONE-LCD4-01-00A2.dtbo’ loaded; overlay id #1
[ 7.620666] bone_capemgr bone_capemgr: part_number ‘BB-BONE-EHRPWM1B’, version ‘N/A’
[ 7.620684] bone_capemgr bone_capemgr: slot #6: override
[ 7.620697] bone_capemgr bone_capemgr: Using override eeprom data at slot 6
[ 7.620712] bone_capemgr bone_capemgr: slot #6: ‘Override Board Name,00A0,Override Manuf,BB-BONE-EHRPWM1B’
[ 7.636906] bone_capemgr bone_capemgr: slot #6: dtbo ‘BB-BONE-EHRPWM1B-00A0.dtbo’ loaded; overlay id #2
[ 7.748424] backlight supply power not found, using dummy regulator
[ 7.790156] backlight supply power not found, using dummy regulator
[ 7.820504] backlight supply power not found, using dummy regulator
[ 7.849196] TI-am335x-tsc TI-am335x-tsc: ti,charge-delay not specified
[ 7.854895] input: ti-tsc as /devices/platform/ocp/44e0d000.tscadc/TI-am335x-tsc/input/input1
[ 7.929224] random: nonblocking pool is initialized
[ 7.995778] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 7.995801] [drm] No driver support for vblank timestamp query.
[ 8.062930] Console: switching to colour frame buffer device 60x34
[ 8.064108] tilcdc 4830e000.lcdc: fb0: frame buffer device
[ 8.064118] tilcdc 4830e000.lcdc: registered panic notifier
[ 8.064135] [drm] Initialized tilcdc 1.0.0 20121205 on minor 0
[ 10.093532] cpsw 4a100000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 10.093590] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
If anyone has any insights as to what is going on, I would greatly appreciate it.