Le 24/10/2010 15:21, Benjamin Tissoires a écrit :
3) the file named hid-mosart.c.patch again (part 2 -> between the #ifdef
CONFIG_PM):
In case of a suspend/resume, the device switch back to the first mode
described above (with left and right buttons).
The patch adds a hook in .reset_resume for the device to be switched to
the correct mode (I just copy the code in mosart_probe).
Following this point, I saw that ntrig ("more recent firmware versions")
and egalax drivers had a similar way of initialization (sending
usbhid_submit_report).
So I was wondering if there were people on the list that want to try the
suspend/resume hook I send above for their device (unless there is no
problem for these devices, but I doubt).
Basically, the idea is to copy the usbhid_submit_report from the
`device`_probe function to a new one `device`_reset_resume, and update
the struct `device`_driver to hang the hook:
/********************************************************************/
/*************************** for egalax: ****************************/
/********************************************************************/
#ifdef CONFIG_PM
static int egalax_reset_resume(struct hid_device *hdev)
{
struct hid_report *report =
hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[5];
if (report) {
report->field[0]->value[0] = 2;
usbhid_submit_report(hdev, report, USB_DIR_OUT);
}
return 0;
}
#endif
/**************************** and change ****************************/
static struct hid_driver egalax_driver = {
.name = "egalax-touch",
.id_table = egalax_devices,
.probe = egalax_probe,
.remove = egalax_remove,
.input_mapping = egalax_input_mapping,
.input_mapped = egalax_input_mapped,
.usage_table = egalax_grabbed_usages,
.event = egalax_event,
#ifdef CONFIG_PM
.reset_resume = egalax_reset_resume,
#endif
};
/********************************************************************/
/**************************** for ntrig: ****************************/
/********************************************************************/
#ifdef CONFIG_PM
static int ntrig_reset_resume(struct hid_device *hdev)
{
struct hid_report *report =
hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[0x0a];
if (report) {
usbhid_submit_report(hdev, report, USB_DIR_OUT);
}
return 0;
}
#endif
/**************************** and change ****************************/
static struct hid_driver ntrig_driver = {
.name = "ntrig",
.id_table = ntrig_devices,
.probe = ntrig_probe,
.remove = ntrig_remove,
.input_mapping = ntrig_input_mapping,
.input_mapped = ntrig_input_mapped,
.usage_table = ntrig_grabbed_usages,
.event = ntrig_event,
#ifdef CONFIG_PM
.reset_resume = ntrig_reset_resume,
#endif
};
/********************************************************************/
Again, these tests will also help Stephane to build a better generic
driver and that's why I do not want to make too much noise on
linux-input ml (sending patches again drivers that are doomed to disappear).
Cheers,
Benjamin
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