[yocto] 3.10 Kernel module loading

[Michael Gloff]

I am having an issue getting a custom touchscreen kernel driver to load.
It's a pixcir touchscreen and I've modified the driver found below to work
with this particular display:

http://lii-enac.fr/cgi-bin/gitweb.cgi?p=linux-input/drivers.git;a=shortlog;h=refs/heads/pixcir

The driver works perfectly with 3.2.32 kernel.
Upgrading to 3.10.11 the driver will load when the system starts, but is
not responding to touches using evtest. If I unload and reload the driver,
(rmmod, modprobe) it works perfectly. Also, if I blacklist the driver on
start, then load it, it will not work. Again, unload, reload works. I've
tried with 3.8 also with similar results.

The display registers itself as both a mouse (usually /dev/input/event2)
and a touchscreen (/dev/input/event5). event2 responds to evtest, but when
used in QT, the motions are way off. This display has no external
calibration capabilities and is connected via usb.

The machine is an atom board. Image was built with yocto 1.5 as a
genericx86 machine type and kernel configed to include custom driver.

I wondering if anyone here knows what might have changed in the kernel
versions on how the modules are loaded.

Relevant kernel messages below. In this case, I booted normally, unloaded
the module and reloaded as can be seen by the last messages. I can provide
more info if necessary.

Thanks!
-- 
Michael Gloff


[    1.414612] input: PIXCIR HID Touch Panel as
/devices/pci0000:00/0000:00:1d.2/usb4/4-1/4-1:1.1/input/input2
[    1.414802] hid-generic 0003:040B:2230.0002: input: USB HID v1.00 Mouse
[PIXCIR HID Touch Panel] on usb-0000:00:1d.2-1/input1
[    1.620535] usb 5-1: new low-speed USB device number 2 using uhci_hcd
[    1.799174] ata4.01: failed to resume link (SControl 0)
[    1.810053] ata4.00: SATA link down (SStatus 0 SControl 310)
[    1.810129] ata4.01: SATA link down (SStatus 0 SControl 0)
[    1.812866] kjournald starting.  Commit interval 5 seconds
[    1.812917] EXT3-fs (sda1): mounted filesystem with ordered data mode
[    1.812942] VFS: Mounted root (ext3 filesystem) readonly on device 8:1.
[    1.813832] devtmpfs: mounted
[    1.813926] Freeing unused kernel memory: 480k freed
[    1.814276] Write protecting the kernel text: 5660k
[    1.814406] Write protecting the kernel read-only data: 2200k
[    1.826189] input: Logitech USB Keyboard as
/devices/pci0000:00/0000:00:1d.3/usb5/5-1/5-1:1.0/input/input3
[    1.826431] hid-generic 0003:046D:C31D.0003: input: USB HID v1.10
Keyboard [Logitech USB Keyboard] on usb-0000:00:1d.3-1/input0
[    1.876337] input: Logitech USB Keyboard as
/devices/pci0000:00/0000:00:1d.3/usb5/5-1/5-1:1.1/input/input4
[    1.876543] hid-generic 0003:046D:C31D.0004: input: USB HID v1.10 Device
[Logitech USB Keyboard] on usb-0000:00:1d.3-1/input1
[    2.057877] udevd[91]: starting version 182
[   12.304518] pixcir 0003:040B:2230.0001: usb_submit_urb(ctrl) failed: -1
[   12.304594] pixcir 0003:040B:2230.0001: timeout initializing reports
[   12.304785] input: PIXCIR HID Touch Panel as
/devices/pci0000:00/0000:00:1d.2/usb4/4-1/4-1:1.0/input/input5
[   12.305048] pixcir 0003:040B:2230.0001: input: USB HID v1.00 Device
[PIXCIR HID Touch Panel] on usb-0000:00:1d.2-1/input0
[   12.361395] EXT3-fs (sda1): using internal journal
[   12.653933] e1000e 0000:00:19.0: irq 41 for MSI/MSI-X
[   12.754413] e1000e 0000:00:19.0: irq 41 for MSI/MSI-X
[   12.754585] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   22.096102] uvesafb: Intel Corporation, Intel(r)PineView Graphics
Controller, Hardware Version 0.0, OEM: Intel(r)PineView Graphics Chip
Accelerated VGA BIOS, VBE v3.0
[   22.127124] uvesafb: VBIOS/hardware doesn't support DDC transfers
[   22.127182] uvesafb: no monitor limits have been set, default refresh
rate will be used
[   22.127365] uvesafb: scrolling: redraw
[   22.284754] Console: switching to colour frame buffer device 100x30
[   22.289705] uvesafb: framebuffer at 0xd0000000, mapped to 0xf8280000,
using 3000k, total 8128k
[   22.289850] fb0: VESA VGA frame buffer device
[   28.170923] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow
Control: None
[   28.173135] e1000e 0000:00:19.0 eth0: 10/100 speed: disabling TSO
[   28.175451] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   72.660551] pixcir 0003:040B:2230.0001: usb_submit_urb(ctrl) failed: -1
[   72.661522] pixcir 0003:040B:2230.0001: timeout initializing reports
[   72.665381] input: PIXCIR HID Touch Panel as
/devices/pci0000:00/0000:00:1d.2/usb4/4-1/4-1:1.0/input/input6
[   72.668159] pixcir 0003:040B:2230.0001: input: USB HID v1.00 Device
[PIXCIR HID Touch Panel] on usb-0000:00:1d.2-1/input0
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