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Using device name instead of ID for touchpad

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* UDEV registers touch pad (e.g., Synaptic) with different IDs on
  reboots. Instead of hard-coding product/device IDs in config.h,
  use a string that appears in device name to identify it
This commit is contained in:
Mahesh Asolkar 2024-04-14 11:39:45 -07:00
parent 51b2f68ba5
commit cc8f7fb99c
2 changed files with 22 additions and 28 deletions
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12
config.mma.def.h
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@ -19,7 +19,8 @@ static const float fullscreen_bg[] = COLOR(0x121212ff);
#define TAGCOUNT (9) #define TAGCOUNT (9)
/* control variables */ /* control variables */
static int cfg_disable_touch_pad = 1; static int cfg_disable_touchpad = 1;
static const char *cfg_touchpad_device_str = "Synaptic";
/* logging */ /* logging */
static int log_level = WLR_ERROR; static int log_level = WLR_ERROR;
@ -94,15 +95,6 @@ LIBINPUT_CONFIG_SEND_EVENTS_DISABLED_ON_EXTERNAL_MOUSE
*/ */
static const uint32_t send_events_mode = LIBINPUT_CONFIG_SEND_EVENTS_ENABLED; static const uint32_t send_events_mode = LIBINPUT_CONFIG_SEND_EVENTS_ENABLED;
/* Touch device information to filter touch events
* Use something like this to obtain info:
*
* root@host $ udevadm info --tree | grep -a5 Synaptic | grep -E "PRODUCT|NAME"
* │ │ ┆ E: PRODUCT=11/2(vendor)/7(product)/1b1
* │ │ ┆ E: NAME="SynPS/2 Synaptics TouchPad" */
static const uint32_t touch_device_vendor_id = 0x2;
static const uint32_t touch_device_product_id = 0x7;
/* You can choose between: /* You can choose between:
LIBINPUT_CONFIG_ACCEL_PROFILE_FLAT LIBINPUT_CONFIG_ACCEL_PROFILE_FLAT
LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE

38
dwl.c
View File

@ -1051,18 +1051,20 @@ createpointer(struct wlr_pointer *pointer)
libinput_device_config_click_set_method (device, click_method); libinput_device_config_click_set_method (device, click_method);
if (libinput_device_config_send_events_get_modes(device)) { if (libinput_device_config_send_events_get_modes(device)) {
if ((cfg_disable_touch_pad) const char *dev_name = libinput_device_get_name(device);
&& ((libinput_device_get_id_vendor(device) == touch_device_vendor_id) if (strstr(dev_name, cfg_touchpad_device_str)) {
&& (libinput_device_get_id_product(device) == touch_device_product_id))) { fprintf(stderr,"DWL::createpointer - %s device %s (%d:%d). Disable=%d\n",
libinput_device_config_send_events_set_mode(device, LIBINPUT_CONFIG_SEND_EVENTS_DISABLED); cfg_touchpad_device_str,
touch_input_device = device; libinput_device_get_name(device),
fprintf(stderr,"DWL::createpointer - Disable set to %d events for device %s (%d:%d) == %d:%d\n", libinput_device_get_id_vendor(device),
cfg_disable_touch_pad, libinput_device_get_id_product(device),
libinput_device_get_name(touch_input_device), cfg_disable_touchpad);
libinput_device_get_id_vendor(touch_input_device), touch_input_device = device; // Capture touchpad device
libinput_device_get_id_product(touch_input_device), touch_device_vendor_id, touch_device_product_id); if (cfg_disable_touchpad) {
} else { libinput_device_config_send_events_set_mode(device, LIBINPUT_CONFIG_SEND_EVENTS_DISABLED);
libinput_device_config_send_events_set_mode(device, send_events_mode); } else {
libinput_device_config_send_events_set_mode(device, send_events_mode);
}
} }
} }
@ -2857,18 +2859,18 @@ tile(Monitor *m)
void void
toggle_touch_input_device(const Arg *arg) { toggle_touch_input_device(const Arg *arg) {
if (cfg_disable_touch_pad) { if (cfg_disable_touchpad) {
libinput_device_config_send_events_set_mode(touch_input_device, send_events_mode); libinput_device_config_send_events_set_mode(touch_input_device, send_events_mode);
cfg_disable_touch_pad = 0; cfg_disable_touchpad = 0;
} else { } else {
libinput_device_config_send_events_set_mode(touch_input_device, LIBINPUT_CONFIG_SEND_EVENTS_DISABLED); libinput_device_config_send_events_set_mode(touch_input_device, LIBINPUT_CONFIG_SEND_EVENTS_DISABLED);
cfg_disable_touch_pad = 1; cfg_disable_touchpad = 1;
} }
fprintf(stderr,"DWL::toggle_touch_input_device - Disable set to %d events for device %s (%d:%d) == %d:%d\n", fprintf(stderr,"DWL::toggle_touch_input_device - Disable set to %d events for device %s (%d:%d)\n",
cfg_disable_touch_pad, cfg_disable_touchpad,
libinput_device_get_name(touch_input_device), libinput_device_get_name(touch_input_device),
libinput_device_get_id_vendor(touch_input_device), libinput_device_get_id_vendor(touch_input_device),
libinput_device_get_id_product(touch_input_device), touch_device_vendor_id, touch_device_product_id); libinput_device_get_id_product(touch_input_device));
} }
void void