I’m trying to get the Arrow SoCKit to connect to my PC as a gadget. I’d like to get it to look like a gadget_zero but haven’t found any good instructions on how to do this. So for For starters, I followed these instructions http://www.linux-usb.org/gadget/file_storage.html in an attempt to get it to look like a mass storage device.
I’ve got 14.1 GSRD loaded on the board.
Things seemed like they were going okay. I did get an error when I wrote the partition table:
Command (m for help): w
The partition table has been altered.
Calling ioctl() to re-read partition table
fdisk: WARNING: rereading partition table failed, kernel still uses old table: Inappropriate ioctl for deviceBut when I plug the USB cable into my windows box, the kernel crashes with this output:
root@socfpga-cyclone5:~# dwc2 ffb40000.usb: new device is high-speed
Unable to handle kernel paging request at virtual address c08cb000
pgd = 80004000
[c08cb000] *pgd=3f816811, *pte=00000000, *ppte=00000000
Internal error: Oops: 7 [#1] SMP ARM
Modules linked in: g_mass_storage libcomposite gpio_altera
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.10.31-ltsi-02861-g801a40f #1
task: 806c98c0 ti: 806be000 task.ti: 806be000
PC is at __raw_readsl+0x40/0x100
LR is at s3c_hsotg_rx_data+0x88/0x118
pc : [<802846e8>] lr : [<8034bb24>] psr: 600b0193
sp : 806bfda8 ip : 00000000 fp : 806bfdd4
r10: 00000000 r9 : 806c63b8 r8 : 00000000
r7 : bf818000 r6 : c08cb000 r5 : bfb1c380 r4 : 00000008
r3 : 00000000 r2 : 00000000 r1 : bfb18ddc r0 : c08cb000
Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel
Control: 10c5387d Table: 3f2d404a DAC: 00000015
Process swapper/0 (pid: 0, stack limit = 0x806be240)
Stack: (0x806bfda8 to 0x806c0000)
fda0: 0000051f 80f48658 00000000 00000010 00000010 bf97e810Any help is appreciated. If you can see what I’m doing wrong or point me to some documentation on how to do this.