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etekcity: implement switch-dpi functionality

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the current driver API is not good enough. We should be able to say
which DPI setting we want to change. Thus, the external API is not
correct either.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
This commit is contained in:
Benjamin Tissoires
2015-08-27 15:15:36 -04:00
parent 17a384de82
commit 4251042a0d
1 changed files with 31 additions and 1 deletions
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32
src/driver-etekcity.c
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@@ -455,7 +455,37 @@ etekcity_write_button(struct ratbag_button *button,
static int
etekcity_write_resolution_dpi(struct ratbag_profile *profile, int dpi)
{
return -ENOTSUP;
struct ratbag_device *device = profile->device;
struct etekcity_data *drv_data = ratbag_get_drv_data(device);
struct etekcity_settings_report *settings_report;
uint8_t *buf;
int rc;
if (dpi < 50 || dpi > 8200 || dpi % 50)
return -EINVAL;
settings_report = &drv_data->settings[profile->index];
/* FIXME: we should be able to say which dpi setting we change */
/* FIXME: allow both x and y dpi to be set */
settings_report->x_sensitivity = 0x0a;
settings_report->y_sensitivity = 0x0a;
settings_report->xres[settings_report->current_dpi] = dpi / 50;
settings_report->yres[settings_report->current_dpi] = dpi / 50;
buf = (uint8_t*)settings_report;
etekcity_set_config_profile(device, profile->index, ETEKCITY_CONFIG_SETTINGS);
rc = ratbag_hidraw_raw_request(device, ETEKCITY_REPORT_ID_SETTINGS,
buf, ETEKCITY_REPORT_SIZE_SETTINGS,
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
if (rc < 0)
return rc;
if (rc != ETEKCITY_REPORT_SIZE_SETTINGS)
return -EIO;
return 0;
}
static int