No cardreader support for O2 Micro, Inc. Device [1217:8520]

Bug #1239938 reported by Adam Lee
90
This bug affects 17 people
Affects Status Importance Assigned to Milestone
HWE Next
Fix Released
Medium
Adam Lee
Saucy
Fix Released
Medium
Adam Lee
Trusty
Fix Released
High
Unassigned
linux (Ubuntu)
Fix Released
Medium
Adam Lee
Precise
Invalid
Undecided
Unassigned
Saucy
Fix Released
Undecided
Unassigned
Trusty
Fix Released
Medium
Adam Lee
linux-lts-raring (Ubuntu)
Invalid
High
Unassigned
Precise
Fix Released
Undecided
Unassigned
Saucy
Invalid
Undecided
Unassigned
Trusty
Invalid
High
Unassigned
linux-lts-saucy (Ubuntu)
Invalid
High
Unassigned
Precise
Fix Released
Undecided
Unassigned
Saucy
Invalid
Undecided
Unassigned
Trusty
Invalid
High
Unassigned

Bug Description

Open this bug to trace device driver for O2 Micro, Inc. Device [1217:8520].

We have seen this cardreader on some laptops, but most BIOS missed its special init, it's better to do that init in kernel.

The support doesn't show up in mainline or mmc-next yet.

Patch submitted upstream: http://article.gmane.org/gmane.linux.kernel.mmc/24244

Revision history for this message
Adam Lee (adam8157) wrote :

Set to incomplete, waiting the driver shows up in mainline.

Changed in linux (Ubuntu):
status: New → Incomplete
Changed in hwe-next:
assignee: nobody → Adam Lee (adam8157)
importance: Undecided → Medium
tags: added: blocks-hwcert-enablement
Adam Lee (adam8157)
Changed in hwe-next:
status: New → Incomplete
Changed in linux (Ubuntu):
status: Incomplete → Confirmed
Revision history for this message
Adam Lee (adam8157) wrote :

Had a "How to submit patches" tech talk with O2Micro engineers, they submitted their first version but rejected, maintainer suggest they wrote a new module instead of adding ~200 lines into general module.

By now, their patch v2 is waiting for review.

Revision history for this message
Po-Hsu Lin (cypressyew) wrote :

Affecting 201307-14017 Dell Latitude E5440

tags: added: 201307-14017 blocks-hwcert taipei-lab
Revision history for this message
VS.Breider (vs-breider) wrote :

I can confirm this bug on my Dell Latitude E6540 using kubuntu 13.10.

Revision history for this message
Po-Hsu Lin (cypressyew) wrote :

Affecting 201307-13941 Dell Latitude E5440

tags: added: 201307-13941
Revision history for this message
Adam Lee (adam8157) wrote :

With O2Micro's permission, I did some modification and resubmitted the patch to mmc-next.

Revision history for this message
bengtan (bengtan) wrote :

Also affects Dell Latitude e7440 with Ubuntu 12.04.03 ... 3.8.0-34-generic #49~precise1-Ubuntu SMP Wed Nov 13 18:05:00 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

Thank you.

Revision history for this message
bengtan (bengtan) wrote :

And a list of other notebooks which are likely to also be affected:

http://www.ubuntu.com/certification/catalog/component/pci/1217:8520/

Begs the question ... how can these systems be listed as certified by Ubuntu if part of the hardware obviously doesn't work?

Revision history for this message
Adam Lee (adam8157) wrote :

Hi, @bengtan

1, we deliver drivers in OEM projects, out of kernel.
2, this bug can be fixed by BIOS too.

Adam Lee (adam8157)
Changed in linux (Ubuntu):
status: Confirmed → In Progress
penalvch (penalvch)
description: updated
Revision history for this message
Adam Lee (adam8157) wrote :

in mmc-next now, waiting next week's merge window.

Revision history for this message
Adam Lee (adam8157) wrote :

remove raring branch since it's almost eol, no enough time.

no longer affects: hwe-next/raring
Revision history for this message
bengtan (bengtan) wrote :

I agree that 13.04 is reaching EOL.

However, the EOL for the Raring HWE Stack is April 2017 because it's in 12.04.3, yes?

See https://wiki.ubuntu.com/Kernel/LTSEnablementStack

Revision history for this message
bengtan (bengtan) wrote :

"The natural support duration for the 13.04 Raring Ringtail release is now 9 months. We will however commit to supporting the Raring HWE stack in 12.04 from the time of the 12.04.3 point release until the 14.04.1 time frame. "

Quoted from https://wiki.ubuntu.com/Kernel/LTSEnablementStack

Revision history for this message
Adam Lee (adam8157) wrote :

Thanks for reminding, @bengtan

Changed in linux-lts-raring (Ubuntu):
status: New → Confirmed
Daniel Manrique (roadmr)
Changed in linux-lts-raring (Ubuntu):
importance: Undecided → High
Revision history for this message
Anthony Wong (anthonywong) wrote :

Patches were pushed to mmc-next for 3.14.

http://comments.gmane.org/gmane.linux.kernel.mmc/24244

Revision history for this message
Adam Lee (adam8157) wrote :

patchset for trusty, saucy and lts-raring are submitted to kernel-team maillist.

Revision history for this message
Adam Lee (adam8157) wrote :

FYI, commits in mainline:
522624f97ee22684cf1b169b5a490cc3ad87b22c
01acf6917aed934388609177605d54ad1463b252

Tim Gardner (timg-tpi)
Changed in linux (Ubuntu Trusty):
status: In Progress → Fix Committed
Tim Gardner (timg-tpi)
Changed in linux (Ubuntu Precise):
status: New → Invalid
Changed in linux (Ubuntu Saucy):
status: New → Fix Committed
Changed in linux-lts-raring (Ubuntu Precise):
status: New → Fix Committed
Changed in linux-lts-raring (Ubuntu Saucy):
status: New → Invalid
Changed in linux-lts-raring (Ubuntu Trusty):
status: Confirmed → Invalid
Changed in linux-lts-saucy (Ubuntu Precise):
status: New → In Progress
Changed in linux-lts-saucy (Ubuntu Saucy):
status: New → Invalid
Changed in linux-lts-saucy (Ubuntu Trusty):
status: New → Invalid
Daniel Manrique (roadmr)
Changed in linux-lts-saucy (Ubuntu):
importance: Undecided → High
Revision history for this message
Launchpad Janitor (janitor) wrote :
Download full text (3.3 KiB)

This bug was fixed in the package linux - 3.13.0-6.23

---------------
linux (3.13.0-6.23) trusty; urgency=low

  [ Andy Whitcroft ]

  * [Config] fix up architecture for linux-tools

linux (3.13.0-6.22) trusty; urgency=low

  [ Andy Whitcroft ]

  * [Packaging] limit linux-udebs-<flavour> to matching arch
  * [Config] powerpc -- disable perf to fix FTBFS
  * [Config] ppc64el -- fix up missing udebs

linux (3.13.0-6.21) trusty; urgency=low

  [ Andy Fleming ]

  * SAUCE: net: Add support for handling queueing in hardware
  * SAUCE: of_mdio: Add of_phy_attach function
  * SAUCE: phylib: Add generic 10G driver
  * SAUCE: phylib: Support attaching to gen10g_driver
  * SAUCE: phylib: Add Clause 45 read/write functions

  [ Andy Whitcroft ]

  * SAUCE: fix fmd headers
  * [Packaging] lowlatency -- merge out of tree flavours
  * SAUCE: allow IRQs to be irq-threaded by default via config
  * [Config]: enable CONFIG_IRQ_FORCED_THREADING_DEFAULT for lowlatency
  * [Config] powerpc -- fix up Build-depends:
  * Release Tracking Bug
    - LP: #1273747

  [ Ben Collins ]

  * SAUCE: PPC: PCI: Fix pcibios_io_space_offset() so it works for 32-bit
    ptr/64-bit rsrcs
  * SAUCE: Revert "phy: vitesse make vsc824x_add_skew static"
  * SAUCE: Fixup freescale usb phy driver to work on ppc64
  * SAUCE: xgmac_mdio: Silence read errors
  * SAUCE: Provide booke stub for kvmppc_is_bigendian()
  * SAUCE: Fix stack overflow on ppc32
  * SAUCE: Use resource_size_t instead of long for PCI resource address
  * SAUCE: net/phy: Export function for use by dpaa_eth
  * [Packaging] powerpc -- merge out of tree powerpc arch

  [ Bjorn Helgaas ]

  * SAUCE: Revert "EISA: Log device resources in dmesg"
    - LP: #1251816
  * SAUCE: Revert "EISA: Initialize device before its resources"
    - LP: #1251816

  [ Emil Medve ]

  * SAUCE: phylib: Minimum hack to get the generic 10G PHY driver to work
    with 10G "fixed-link"s

  [ Kumar Gala ]

  * SAUCE: fsl_qbman: Add drivers for Freescale DPAA Qman & Bman
  * SAUCE: fsl_pme2: Add support for DPAA PME
  * SAUCE: fmd: FMD14 integration
  * SAUCE: dpaa_eth: Ethernet driver for Freescale QorIQ DPA Architecture
  * SAUCE: powerpc/85xx: Add DPAA/networking support for CoreNet

  [ Madalin Bucur ]

  * SAUCE: net/flow: remove sleeping and deferral mechanism from
    flow_cache_flush
  * SAUCE: net/phy: abort genphy_read_status when link changes during speed
    and duplex reading

  [ Stefan Bader ]

  * [Config] move some VMWare related modules into main package
    - LP: #1271669

  [ Tim Gardner ]

  * [Config] Add r815x to nic-modules
    - LP: #1273735
  * [Config] CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
    - LP: #239479

  [ Upstream Kernel Changes ]

  * mmc: sdhci-pci: break out definitions to header file
    - LP: #1239938
  * mmc: sdhci-pci: add support of O2Micro/BayHubTech SD hosts
    - LP: #1239938
  * powerpc/book3e: rename interrupt_end_book3e with __end_interrupts
  * powerpc/book3e: support CONFIG_RELOCATABLE
  * book3e/kexec/kdump: enable kexec for kernel
  * book3e/kexec/kdump: create a 1:1 TLB mapping
  * book3e/kexec/kdump: introduce a kexec kernel flag
  * book3e/kexec/kdump: implement ppc64 kexec specfic
  * book3e/...

Read more...

Changed in linux (Ubuntu Trusty):
status: Fix Committed → Fix Released
Revision history for this message
bengtan (bengtan) wrote :

Hi,

I recently installed a linux kernel update, but it doesn't look like it's fixed this issue. I'm on 12.04.3 LTS with Raring LTS (I think):

Linux MXC-062 3.8.0-35-generic #52~precise1-Ubuntu SMP Thu Jan 30 17:24:40 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

Has it been released for this "stream" of the kernel yet? I don't quite understand the subtleties of the different kernel projects on launchpad.

Thanks.

Revision history for this message
Adam Lee (adam8157) wrote :

@bengtan

check linux-lts-raring's precise stream, not released yet by now.

Revision history for this message
bengtan (bengtan) wrote :

@Adam Lee: Understood. Thanks.

Revision history for this message
Chih-Hsyuan Ho (chih) wrote :

I installed the 3.13.0-6.23 (https://launchpad.net/ubuntu/+source/linux/3.13.0-6.23) kernel which supposedly contains the fix and confirmed that the affected card reader (O2 Micro) indeed works properly afterwards.

Taihsiang Ho (tai271828)
tags: added: 201304-13408
Taihsiang Ho (tai271828)
tags: added: 201306-13688
Revision history for this message
Brad Figg (brad-figg) wrote :

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-saucy' to 'verification-done-saucy'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: verification-needed-saucy
Adam Lee (adam8157)
Changed in linux-lts-saucy (Ubuntu Precise):
status: In Progress → Fix Committed
Revision history for this message
Adam Lee (adam8157) wrote :

verified with saucy 3.11.0-18, positive

tags: added: verification-done-saucy
removed: verification-needed-saucy
Revision history for this message
Adam Lee (adam8157) wrote :

verified with lts-raring 3.8.0-37, positive too

Revision history for this message
Adam Lee (adam8157) wrote :

#25 and #26 are tested on ThinkPad W540

Revision history for this message
Launchpad Janitor (janitor) wrote :
Download full text (30.5 KiB)

This bug was fixed in the package linux-lts-raring - 3.8.0-37.53~precise1

---------------
linux-lts-raring (3.8.0-37.53~precise1) precise; urgency=low

  [ Joseph Salisbury ]

  * Release Tracking Bug
    - LP: #1282210

  [ Upstream Kernel Changes ]

  * Revert "of/address: Handle #address-cells > 2 specially"
    - LP: #1278969
  * ath9k_htc: properly set MAC address and BSSID mask
    - LP: #1252422
    - CVE-2013-4579
  * aacraid: prevent invalid pointer dereference
    - LP: #1256083
    - CVE-2013-6380
  * net: clamp ->msg_namelen instead of returning an error
    - LP: #1269053
  * mmc: sdhci-pci: break out definitions to header file
    - LP: #1239938
  * mmc: sdhci-pci: add support of O2Micro/BayHubTech SD hosts
    - LP: #1239938
  * SELinux: Fix kernel BUG on empty security contexts.
    - CVE-2014-1874
  * xfs: add capability check to free eofblocks ioctl
    - LP: #1278969
  * staging: vt6656: [BUG] Fix for TX USB resets from vendors driver.
    - LP: #1278969
  * net: Fix "ip rule delete table 256"
    - LP: #1278969
  * ipv6: use rt6_get_dflt_router to get default router in rt6_route_rcv
    - LP: #1278969
  * random32: fix off-by-one in seeding requirement
    - LP: #1278969
  * bonding: don't permit to use ARP monitoring in 802.3ad mode
    - LP: #1278969
  * usbnet: fix status interrupt urb handling
    - LP: #1278969
  * 6lowpan: Uncompression of traffic class field was incorrect
    - LP: #1278969
  * tuntap: limit head length of skb allocated
    - LP: #1278969
  * macvtap: limit head length of skb allocated
    - LP: #1278969
  * tcp: tsq: restore minimal amount of queueing
    - LP: #1278969
  * bonding: fix two race conditions in bond_store_updelay/downdelay
    - LP: #1278969
  * net-tcp: fix panic in tcp_fastopen_cache_set()
    - LP: #1278969
  * isdnloop: use strlcpy() instead of strcpy()
    - LP: #1278969
  * connector: improved unaligned access error fix
    - LP: #1278969
  * ipv4: fix possible seqlock deadlock
    - LP: #1278969
  * inet: prevent leakage of uninitialized memory to user in recv syscalls
    - LP: #1278969
  * net: rework recvmsg handler msg_name and msg_namelen logic
    - LP: #1278969
  * net: add BUG_ON if kernel advertises msg_namelen > sizeof(struct
    sockaddr_storage)
    - LP: #1278969
  * inet: fix addr_len/msg->msg_namelen assignment in recv_error and rxpmtu
    functions
    - LP: #1278969
  * ipv6: fix leaking uninitialized port number of offender sockaddr
    - LP: #1278969
  * ip6_output: fragment outgoing reassembled skb properly
    - LP: #1278969
  * xfrm: Release dst if this dst is improper for vti tunnel
    - LP: #1278969
  * atm: idt77252: fix dev refcnt leak
    - LP: #1278969
  * tcp: don't update snd_nxt, when a socket is switched from repair mode
    - LP: #1278969
  * ipv4: fix race in concurrent ip_route_input_slow()
    - LP: #1278969
  * net: core: Always propagate flag changes to interfaces
    - LP: #1278969
  * bridge: flush br's address entry in fdb when remove the bridge dev
    - LP: #1278969
  * packet: fix use after free race in send path when dev is released
    - LP: #1278969
  * af_packet: block BH in prb_shutdown_retire_blk_timer()
    - LP: #1278969
  ...

Changed in linux-lts-raring (Ubuntu Precise):
status: Fix Committed → Fix Released
status: Fix Committed → Fix Released
Revision history for this message
Launchpad Janitor (janitor) wrote :
Download full text (18.1 KiB)

This bug was fixed in the package linux-lts-saucy - 3.11.0-18.32~precise1

---------------
linux-lts-saucy (3.11.0-18.32~precise1) precise; urgency=low

  [ Brad Figg ]

  * Release Tracking Bug
    - LP: #1281894

  [ Bjorn Helgaas ]

  * SAUCE: Revert "EISA: Log device resources in dmesg"
    - LP: #1251816
  * SAUCE: Revert "EISA: Initialize device before its resources"
    - LP: #1251816

  [ Upstream Kernel Changes ]

  * Revert "ip6tnl: fix use after free of fb_tnl_dev"
    - LP: #1279399
  * mmc: sdhci-pci: break out definitions to header file
    - LP: #1239938
  * mmc: sdhci-pci: add support of O2Micro/BayHubTech SD hosts
    - LP: #1239938
  * kexec: add sysctl to disable kexec_load
    - LP: #1259570
  * SELinux: Fix kernel BUG on empty security contexts.
    - CVE-2014-1874
  * br: fix use of ->rx_handler_data in code executed on non-rx_handler
    path
    - LP: #1279399
  * arc_emac: fix potential use after free
    - LP: #1279399
  * ipv4: fix tunneled VM traffic over hw VXLAN/GRE GSO NIC
    - LP: #1279399
  * sfc: Add length checks to efx_xmit_with_hwtstamp() and
    efx_ptp_is_ptp_tx()
    - LP: #1279399
  * sfc: PTP: Moderate log message on event queue overflow
    - LP: #1279399
  * sfc: Rate-limit log message for PTP packets without a matching
    timestamp event
    - LP: #1279399
  * sfc: Stop/re-start PTP when stopping/starting the datapath.
    - LP: #1279399
  * sfc: Maintain current frequency adjustment when applying a time offset
    - LP: #1279399
  * dm thin: switch to read-only mode if metadata space is exhausted
    - LP: #1279399
  * dm thin: always fallback the pool mode if commit fails
    - LP: #1279399
  * mm: memcg: fix race condition between memcg teardown and swapin
    - LP: #1279399
  * ARM: dts: exynos5250: Fix MDMA0 clock number
    - LP: #1279399
  * ARM: shmobile: kzm9g: Fix coherent DMA mask
    - LP: #1279399
  * ARM: shmobile: armadillo: Fix coherent DMA mask
    - LP: #1279399
  * ARM: shmobile: mackerel: Fix coherent DMA mask
    - LP: #1279399
  * clk: samsung: exynos4: Correct SRC_MFC register
    - LP: #1279399
  * clk: samsung: exynos5250: Add CLK_IGNORE_UNUSED flag for the sysreg
    clock
    - LP: #1279399
  * clk: exynos5250: fix sysmmu_mfc{l,r} gate clocks
    - LP: #1279399
  * [SCSI] sd: Reduce buffer size for vpd request
    - LP: #1279399
  * netfilter: nf_nat: fix access to uninitialized buffer in IRC NAT helper
    - LP: #1279399
  * writeback: Fix data corruption on NFS
    - LP: #1279399
  * drm/i915: fix DDI PLLs HW state readout code
    - LP: #1279399
  * drm/i915: Don't grab crtc mutexes in intel_modeset_gem_init()
    - LP: #1279399
  * md/raid5: Fix possible confusion when multiple write errors occur.
    - LP: #1279399
  * md/raid10: fix two bugs in handling of known-bad-blocks.
    - LP: #1279399
  * md/raid10: fix bug when raid10 recovery fails to recover a block.
    - LP: #1279399
  * md: fix problem when adding device to read-only array with bitmap.
    - LP: #1279399
  * hwmon: (coretemp) Fix truncated name of alarm attributes
    - LP: #1279399
  * nilfs2: fix segctor bug that causes file system corruption
    - LP: #1279399
  * mm: fix crash when using XFS on l...

Changed in linux-lts-saucy (Ubuntu Precise):
status: Fix Committed → Fix Released
Revision history for this message
Launchpad Janitor (janitor) wrote :
Download full text (18.1 KiB)

This bug was fixed in the package linux - 3.11.0-18.32

---------------
linux (3.11.0-18.32) saucy; urgency=low

  [ Brad Figg ]

  * Release Tracking Bug
    - LP: #1281764

  [ Bjorn Helgaas ]

  * SAUCE: Revert "EISA: Log device resources in dmesg"
    - LP: #1251816
  * SAUCE: Revert "EISA: Initialize device before its resources"
    - LP: #1251816

  [ Upstream Kernel Changes ]

  * Revert "ip6tnl: fix use after free of fb_tnl_dev"
    - LP: #1279399
  * mmc: sdhci-pci: break out definitions to header file
    - LP: #1239938
  * mmc: sdhci-pci: add support of O2Micro/BayHubTech SD hosts
    - LP: #1239938
  * kexec: add sysctl to disable kexec_load
    - LP: #1259570
  * SELinux: Fix kernel BUG on empty security contexts.
    - CVE-2014-1874
  * br: fix use of ->rx_handler_data in code executed on non-rx_handler
    path
    - LP: #1279399
  * arc_emac: fix potential use after free
    - LP: #1279399
  * ipv4: fix tunneled VM traffic over hw VXLAN/GRE GSO NIC
    - LP: #1279399
  * sfc: Add length checks to efx_xmit_with_hwtstamp() and
    efx_ptp_is_ptp_tx()
    - LP: #1279399
  * sfc: PTP: Moderate log message on event queue overflow
    - LP: #1279399
  * sfc: Rate-limit log message for PTP packets without a matching
    timestamp event
    - LP: #1279399
  * sfc: Stop/re-start PTP when stopping/starting the datapath.
    - LP: #1279399
  * sfc: Maintain current frequency adjustment when applying a time offset
    - LP: #1279399
  * dm thin: switch to read-only mode if metadata space is exhausted
    - LP: #1279399
  * dm thin: always fallback the pool mode if commit fails
    - LP: #1279399
  * mm: memcg: fix race condition between memcg teardown and swapin
    - LP: #1279399
  * ARM: dts: exynos5250: Fix MDMA0 clock number
    - LP: #1279399
  * ARM: shmobile: kzm9g: Fix coherent DMA mask
    - LP: #1279399
  * ARM: shmobile: armadillo: Fix coherent DMA mask
    - LP: #1279399
  * ARM: shmobile: mackerel: Fix coherent DMA mask
    - LP: #1279399
  * clk: samsung: exynos4: Correct SRC_MFC register
    - LP: #1279399
  * clk: samsung: exynos5250: Add CLK_IGNORE_UNUSED flag for the sysreg
    clock
    - LP: #1279399
  * clk: exynos5250: fix sysmmu_mfc{l,r} gate clocks
    - LP: #1279399
  * [SCSI] sd: Reduce buffer size for vpd request
    - LP: #1279399
  * netfilter: nf_nat: fix access to uninitialized buffer in IRC NAT helper
    - LP: #1279399
  * writeback: Fix data corruption on NFS
    - LP: #1279399
  * drm/i915: fix DDI PLLs HW state readout code
    - LP: #1279399
  * drm/i915: Don't grab crtc mutexes in intel_modeset_gem_init()
    - LP: #1279399
  * md/raid5: Fix possible confusion when multiple write errors occur.
    - LP: #1279399
  * md/raid10: fix two bugs in handling of known-bad-blocks.
    - LP: #1279399
  * md/raid10: fix bug when raid10 recovery fails to recover a block.
    - LP: #1279399
  * md: fix problem when adding device to read-only array with bitmap.
    - LP: #1279399
  * hwmon: (coretemp) Fix truncated name of alarm attributes
    - LP: #1279399
  * nilfs2: fix segctor bug that causes file system corruption
    - LP: #1279399
  * mm: fix crash when using XFS on loopback
    - LP: #1279399
  * vfs: In d...

Changed in linux (Ubuntu Saucy):
status: Fix Committed → Fix Released
status: Fix Committed → Fix Released
Revision history for this message
bengtan (bengtan) wrote :

Hi,

I've just updated the kernel. Works now, and issue resolved for me.

Platform:
Dell e7440
Linux MXC-062 3.8.0-37-generic #53~precise1-Ubuntu SMP Wed Feb 19 21:37:54 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

Thank you.

Taihsiang Ho (tai271828)
tags: added: 201306-13679
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Taihsiang Ho (tai271828) wrote :

Dell Latitude E6540(CID 201306-13679) tested on linux-lts-saucy (3.11.0-18.32~precise1)

the cardreader works now.

But for some of mmc cards it could not work normally, this issue was filed as the bug report LP: #1296598

tags: added: verification-done-lts-saucy
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Rob (benssonrob) wrote :

On a Latitude E6440 I get:

[ 1.149244] mmc0: Unknown controller version (3). You may experience problems.

06:00.0 SD Host controller: O2 Micro, Inc. SD/MMC Card Reader Controller (rev 01)

Ubuntu 14.10

Is that normal?

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Taihsiang Ho (tai271828) wrote :

@Rob, may you please paste your "lspci -nn" output here?

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Adam Lee (adam8157) wrote :

@Rob, that output is OK. Please report bug if you find the "experience problems", thanks.

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