Yes Alan, it works ok, thank you (: Are you going to propose this
patch for the mainline?
2014-06-02 11:39 GMT-03:00 Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>:
> On Fri, 30 May 2014, Leandro Liptak wrote:
>
>> Adjunct is the output of dmidecode (:
>> I didn't try setting "try_handoff" to 0, but I think behavior is
>> predictable since in that case the kernel will never reach the
>> pci_write in question. I found a kernel compiling option named "Enable
>> PCI quirk workarounds". It seems what i've been looking for (i mean,
>> disabling of it), at least while i have this buggy bios...
>
> See if the patch below fixes your problem.
>
> Alan Stern
>
>
>
> Index: usb-3.15/drivers/usb/host/pci-quirks.c
> ===================================================================
> --- usb-3.15.orig/drivers/usb/host/pci-quirks.c
> +++ usb-3.15/drivers/usb/host/pci-quirks.c
> @@ -656,6 +656,14 @@ static const struct dmi_system_id ehci_d
> DMI_MATCH(DMI_BIOS_VERSION, "Lucid-"),
> },
> },
> + {
> + /* HASEE E200 */
> + .matches = {
> + DMI_MATCH(DMI_BOARD_VENDOR, "HASEE"),
> + DMI_MATCH(DMI_BOARD_NAME, "E210"),
> + DMI_MATCH(DMI_BIOS_VERSION, "6.00"),
> + },
> + },
> { }
> };
>
> @@ -665,9 +673,14 @@ static void ehci_bios_handoff(struct pci
> {
> int try_handoff = 1, tried_handoff = 0;
>
> - /* The Pegatron Lucid tablet sporadically waits for 98 seconds trying
> - * the handoff on its unused controller. Skip it. */
> - if (pdev->vendor == 0x8086 && pdev->device == 0x283a) {
> + /*
> + * The Pegatron Lucid tablet sporadically waits for 98 seconds trying
> + * the handoff on its unused controller. Skip it.
> + *
> + * The HASEE E200 hangs when the semaphore is set (bugzilla #77021).
> + */
> + if (pdev->vendor == 0x8086 && (pdev->device == 0x283a ||
> + pdev->device == 0x27cc)) {
> if (dmi_check_system(ehci_dmi_nohandoff_table))
> try_handoff = 0;
> }
>
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