Following comment#8, changing tags back to verification-done-bionic
** Tags removed: verification-failed-bionic
** Tags added: verification-done-bionic
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@Dorian,
Can you please share the acpidump for IB8000 Atom Braswell board?
Also, please check if Debian 4.16.0-2 has CONFIG_SERIAL_DEV_BUS=y
enabled by default. If not, then ttySx ports on this kernel will not be
claimed by the Serdev bus sub-system.
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Same problem on an IB8000 Atom Braswell board using 16.04.
Also shows the two ports when checking with acpidump, but the bionic OEM kernel
mentioned here did not fix it when installed on my 16.04. It booted fine but no
ttyS or ttyHS...
What really did the trick was the Debian 4.16.0-2 mentioned a
Not as long as this regression in Serdev is fixed.
In your case, the port controller /dev/ttyS6 is actually created by the
kernel, but not exposed to the user. So, ttyS6 cannot be re-claimed by
the Intel HS-UART driver.
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Confirm it's renamed to /dev/ttyHS1
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Title:
Support Intel Atom (Baytrail-I) HS-UART serdev slaves over tty
To manage notifications about this bu
Is it possible to avoid such renaming?
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Title:
Support Intel Atom (Baytrail-I) HS-UART serdev slaves over tty
To manage notifications about this
@Denis,
Then the /dev/ttyS6 may now appear as /dev/ttyHSx. Can you confirm this?
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Title:
Support Intel Atom (Baytrail-I) HS-UART serdev slaves o
@Shrirang
Yes, I think I have:
$ sudo acpidump | grep "3511\|3512"
39C0: 54 33 35 31 31 00 14 17 5F 53 54 41 00 A0 0C 93 T3511..._STA
3A90: 49 4E 54 33 35 31 32 00 14 17 5F 53 54 41 00 A0 INT3512..._STA..
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@Denis,
Have you looked at the RFC patch submitted to linux-serial (see bug
Description)?
The driver provided as fix for this issue will only attach if the BIOS on your
HW describes virtual serial devices with HID's INT3511/INT3512.
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** Tags removed: verification-done-bionic
** Tags added: verification-failed-bionic
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Title:
Support Intel Atom (Baytrail-I) HS-UART serdev slaves
Hi,
I have an Intel Atom E3930 system, /dev/ttyS6 device node is no longer exposed
to the userspace starting from 4.15+ Ubuntu kernels.
BTW, it works fine on Debian kernels, for example on 4.16.0-2-amd64
I've tried supposed linux-oem-4.15.0-1006.9 but device node is still
missing, although appea
This bug was fixed in the package linux-oem - 4.15.0-1006.9
---
linux-oem (4.15.0-1006.9) bionic; urgency=medium
* linux-image-4.15.0-20-generic install after upgrade from xenial breaks
(LP: #1767133)
- Packaging: Depends on linux-base that provides the necessary tools
[
This bug was fixed in the package linux-oem - 4.15.0-1006.9
---
linux-oem (4.15.0-1006.9) bionic; urgency=medium
* linux-image-4.15.0-20-generic install after upgrade from xenial breaks
(LP: #1767133)
- Packaging: Depends on linux-base that provides the necessary tools
[
** Tags removed: verification-needed-bionic
** Tags added: verification-done-bionic
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Title:
Support Intel Atom (Baytrail-I) HS-UART serdev slaves
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
bionic' to 'verification-done-bionic'. If the problem still exists,
change the tag 'verifica
** Also affects: linux-oem (Ubuntu Bionic)
Importance: Undecided
Status: New
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Title:
Support Intel Atom (Baytrail-I) HS-UART serdev sla
** Description changed:
Support Intel Atom (Baytrail-I) HS-UART serdev slaves over tty
On systems using Intel Atom (Baytrail-I) SoC's, slave devices connected on
HSUART1/2 ports are described by the ACPI BIOS as virtual hardware using
HID's INT3511/INT3512 [1].
As a consequence, HW
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