how-to add kernel module for allwinner H6 build

pascal_47 · November 27, 2021 at 8:39 PM

Hello I'm new on this forum , so perhaps it's not the good place .

I would like to be able to use a USB-DVD drive, but it seems that with LibreELEC-H6.arm-11.0 release, the modules aren't present (sr_mod and some others).

So is there a way to add it by building a new release with them ?

Are there some links to explain it ?

Thanks you

**jernej** · November 27, 2021 at 9:43 PM

projects/Allwinner/linux/linux.aarch64.conf already contains CONFIG_BLK_DEV_SR=y, so CD ROM support is already enabled. It's built-in instead of module, but that doesn't make any difference. What other drivers are missing for your case?

**heitbaum** · November 28, 2021 at 1:22 AM

Some commands to try:

Code

lsusb
lsusb -v
dmesg
journalctl -f 
# if you unplug and replug the usb drive with journalctl -f it should show you what it thinks is happening.

pascal_47 · November 29, 2021 at 8:45 PM

Ok, I found the problem.

It's when I insert a iso9660 cdom i have this output

Code

Nov 29 19:45:57 LibreELEC kernel: scsi 0:0:0:0: CD-ROM            HL-DT-ST CDRW/DVD GCCT10N A100 PQ: 0 ANSI: 0
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] scsi3-mmc drive: 10x/24x writer cd/rw xa/form2 cdda tray
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: Attached scsi CD-ROM sr0
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=0s
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 Sense Key : Illegal Request [current]
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 Add. Sense: Illegal mode for this track
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 03 b2 9e 00 00 02 00
Nov 29 19:45:57 LibreELEC kernel: blk_update_request: I/O error, dev sr0, sector 969336 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=0s
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 Sense Key : Illegal Request [current]
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 Add. Sense: Illegal mode for this track
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 03 b2 9e 00 00 01 00
Nov 29 19:45:57 LibreELEC kernel: blk_update_request: I/O error, dev sr0, sector 969336 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
Nov 29 19:45:57 LibreELEC kernel: buffer_io_error: 234 callbacks suppressed
Nov 29 19:45:57 LibreELEC kernel: Buffer I/O error on dev sr0, logical block 242334, async page read
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=0s
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 Sense Key : Illegal Request [current]
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 Add. Sense: Illegal mode for this track
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 03 b2 9f 00 00 01 00
Nov 29 19:45:57 LibreELEC kernel: blk_update_request: I/O error, dev sr0, sector 969340 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
Nov 29 19:45:57 LibreELEC kernel: Buffer I/O error on dev sr0, logical block 242335, async page read
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=0s
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 Sense Key : Illegal Request [current]
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 Add. Sense: Illegal mode for this track
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 02 00
Nov 29 19:45:57 LibreELEC kernel: blk_update_request: I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=0s
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 Sense Key : Illegal Request [current]
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 Add. Sense: Illegal mode for this track
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 01 00
Nov 29 19:45:57 LibreELEC kernel: blk_update_request: I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
Nov 29 19:45:57 LibreELEC kernel: Buffer I/O error on dev sr0, logical block 0, async page read
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=0s
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 Sense Key : Illegal Request [current]
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 Add. Sense: Illegal mode for this track
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 01 00 00 01 00
Nov 29 19:45:57 LibreELEC kernel: blk_update_request: I/O error, dev sr0, sector 4 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
Nov 29 19:45:57 LibreELEC kernel: Buffer I/O error on dev sr0, logical block 1, async page read
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=0s
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 Sense Key : Illegal Request [current]
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 Add. Sense: Illegal mode for this track
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 01 00
Nov 29 19:45:57 LibreELEC kernel: blk_update_request: I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
Nov 29 19:45:57 LibreELEC kernel: Buffer I/O error on dev sr0, logical block 0, async page read
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=0s
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 Sense Key : Illegal Request [current]
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 Add. Sense: Illegal mode for this track
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 01 00 00 01 00
Nov 29 19:45:57 LibreELEC kernel: blk_update_request: I/O error, dev sr0, sector 4 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
Nov 29 19:45:57 LibreELEC kernel: Buffer I/O error on dev sr0, logical block 1, async page read
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=0s
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 Sense Key : Illegal Request [current]
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 Add. Sense: Illegal mode for this track
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 01 00
Nov 29 19:45:57 LibreELEC kernel: blk_update_request: I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
Nov 29 19:45:57 LibreELEC kernel: Buffer I/O error on dev sr0, logical block 0, async page read
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=0s
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 Sense Key : Illegal Request [current]
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 Add. Sense: Illegal mode for this track
Nov 29 19:45:57 LibreELEC kernel: sr 0:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 01 00 00 01 00
Nov 29 19:45:57 LibreELEC kernel: blk_update_request: I/O error, dev sr0, sector 4 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
Nov 29 19:45:57 LibreELEC kernel: Buffer I/O error on dev sr0, logical block 1, async page read
Nov 29 19:45:57 LibreELEC kernel: Buffer I/O error on dev sr0, logical block 0, async page read
Nov 29 19:45:57 LibreELEC kernel: Buffer I/O error on dev sr0, logical block 1, async page read
Nov 29 19:45:57 LibreELEC systemd[1]: Stopping Udevil mount service...
Nov 29 19:45:57 LibreELEC udevil[1270]: udevil: error 143: unable to determine device fstype
Nov 29 19:45:57 LibreELEC systemd[1]: udevil-mount@-dev-sr0.service: Succeeded.

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So i Tried a a manual mount et I have this oputput :

Code

busybox mount -t iso9660 /dev/sr0 /media/cdrom

Output :

Code

mount: mounting /dev/sr0 on /media/cdrom failed: Invalid argument

So perhaps the mount busybox version don't have the iso9660 fstype ?

With a DVD it's Ok (udf fstype used ) and I can read the movie.

**jernej** · November 30, 2021 at 4:19 PM

It should be supported: https://github.com/LibreELEC/Libr…arget.conf#L719

Does it work without -t parameter?

BTW, you can call mount directly, without prefixing command with busybox.

pascal_47 · December 5, 2021 at 8:03 PM

Hi, sorry for the late answer.

Indeed it's included, but it was a mistake ...

I tried to read an audio cd which isn't a iso9660 fs type.

So i discovered that when i put a dvd in the reader it's the kernel that mount it with the udf fs type.

But for an audio cd, it's kodi with a 'disc" icon where you can read or extract content.

Making test i discovered that the problem comes from the USB3 port, sometimes the xhci-hcd driver seems not to manage correctly

my usb-cd/dvd .

With cubox, i solved the problem by blacklisting the driver (as a module) , but it seems to be a builtin and the blacklisting option

has no action .

**jernej** · December 8, 2021 at 8:45 PM

which driver would you like to blacklist? usb3?

pascal_47 · December 12, 2021 at 6:37 PM

Yes, it's the "xhci-hcd" driver for USB3.

Because it's seems that the driver has some problem to interact with my USB cd-DVD reader.

I-ve got some messages like this one:

Code

reset high-speed USB device number 2 using xhci-hcd

As it's a builtin module , it seems not to be easy to make it.

**jernej** · December 13, 2021 at 4:32 PM

Well, you can mark it as a module in kernel config, build image, test it and if it works for you, open a PR on github.

pascal_47 · December 16, 2021 at 6:58 PM

Hi jernej, in order to make a new build , can you give me some links ?

Because I'm a newbie for it.

Thanks you.

**jernej** · December 16, 2021 at 8:29 PM

There is whole chapter for building on wiki: https://wiki.libreelec.tv/development-1/…mands-le-11.0.x