Re: usb-wacom-tablet failing to register

[Michael Nazzareno Trimarchi <michael@amarulasolutions.com>]

Hi

What I have seen is that the parse fail to execute
hid ll_driver parse fai for

 ret = hid_get_class_descriptor(dev, interface->desc.bInterfaceNumber,
                        HID_DT_REPORT, rdesc, rsize);

Now this is not implemented in hw/dev-wacom.c . What am I missing?

#!/bin/sh
IMAGE_DIR="${0%/*}/"

if [ "${1}" = "serial-only" ]; then
    EXTRA_ARGS='-nographic'
else
    EXTRA_ARGS='-serial stdio'
fi

export PATH="/home/michael/work/amarula/buildroot/output/host/bin:${PATH}"
exec   qemu-system-i386 -M pc -kernel ${IMAGE_DIR}/bzImage -usb
-device usb-wacom-tablet -drive
file=${IMAGE_DIR}/rootfs.ext2,if=virtio,format=raw -append "rootwait
root=/dev/vda console=tty1 console=ttyS0"  -net nic,model=virtio -net
use
r  ${EXTRA_ARGS}

This is how I run it

Michael

On Sat, Jul 11, 2020 at 4:38 PM Michael Nazzareno Trimarchi
<michael@amarulasolutions.com> wrote:
>
> Hi all
>
> On my 4.17.0-rc1 linux kernel i386 running on qemu, I can't register
> the wacom driver emulation
> QEMU emulator version 4.2.0 (Debian 1:4.2-3ubuntu6.3)
> Copyright (c) 2003-2019 Fabrice Bellard and the QEMU Project developers
>
> [    0.395368] ata2.00: configured for MWDMA2
> [    0.397049] scsi 1:0:0:0: CD-ROM            QEMU     QEMU DVD-ROM
>   2.5+ PQ: 0 ANSI: 5
> [    0.584135] usb 2-1: new full-speed USB device number 2 using xhci_hcd
> [    0.734449] usb 2-1: New USB device found, idVendor=056a,
> idProduct=0000, bcdDevice=42.10
> [    0.734461] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
> [    0.734466] usb 2-1: Product: Wacom PenPartner
> [    0.734470] usb 2-1: Manufacturer: QEMU
> [    0.734474] usb 2-1: SerialNumber: 1-0000:00:04.0-1
> [    0.737347] usbhid 2-1:1.0: can't add hid device: -32
> [    0.737366] usbhid: probe of 2-1:1.0 failed with error -32
>
> I get back an error. Any suggestions?
>
> Michael



-- 
Michael Nazzareno Trimarchi
Amarula Solutions BV
COO Co-Founder
Cruquiuskade 47 Amsterdam 1018 AM NL
T. +31(0)851119172
M. +39(0)3479132170
[`as] https://www.amarulasolutions.com