feat(tuxedo_sysfs): write part of charging profiles

tuxedo_sysfs/src/charging/charge_control.rs

@@ -1,7 +1,8 @@
 use std::io;
 
 use crate::sysfs_util::{
-    r_file, read_int_list, read_path_to_int_list, read_path_to_string, read_to_string,
+    r_file, read_int_list, read_path_to_int_list, read_path_to_string, read_to_string, write_int,
+    write_string,
 };
 
 use super::BatteryChargeControl;
@@ -125,4 +126,22 @@ impl BatteryChargeControl {
             .trim()
             .to_owned())
     }
+
+    /// <https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-class-power>
+    /// (section charge_type)
+    pub async fn set_charge_type(&mut self, charge_type: String) -> Result<(), io::Error> {
+        write_string(&mut self.charge_type_file, charge_type).await
+    }
+
+    /// generally: 0-100,
+    /// but may be further restricted to [`Self::available_start_thresholds`]
+    pub async fn set_start_threshold(&mut self, threshold: u32) -> Result<(), io::Error> {
+        write_int(&mut self.start_threshold_file, threshold).await
+    }
+
+    /// generally: 0-100,
+    /// but may be further restricted to [`Self::available_end_thresholds`]
+    pub async fn set_end_threshold(&mut self, threshold: u32) -> Result<(), io::Error> {
+        write_int(&mut self.end_threshold_file, threshold).await
+    }
 }

tuxedo_sysfs/src/charging/charging_priority.rs

@@ -1,6 +1,6 @@
 use std::io;
 
-use crate::sysfs_util::{r_file, read_to_string, read_to_string_list, rw_file};
+use crate::sysfs_util::{r_file, read_to_string, read_to_string_list, rw_file, write_string};
 
 use super::ChargingPriority;
 
@@ -32,4 +32,12 @@ impl ChargingPriority {
             .trim()
             .to_owned())
     }
+
+    /// charge_battery, performance
+    /// src/ng-app/app/charging-settings/charging-settings.component.ts
+    /// in TCC
+    /// / src/uniwill_keyboard.h in tuxedo-keyboard
+    pub async fn set_charging_priority(&mut self, priority: String) -> Result<(), io::Error> {
+        write_string(&mut self.charging_priority_file, priority).await
+    }
 }

tuxedo_sysfs/src/charging/charging_profile.rs

@@ -1,6 +1,6 @@
 use std::io;
 
-use crate::sysfs_util::{r_file, read_to_string, read_to_string_list, rw_file};
+use crate::sysfs_util::{r_file, read_to_string, read_to_string_list, rw_file, write_string};
 
 use super::ChargingProfile;
 
@@ -32,4 +32,12 @@ impl ChargingProfile {
             .trim()
             .to_owned())
     }
+
+    /// high_capacity, balanced, stationary according to
+    /// src/ng-app/app/charging-settings/charging-settings.component.ts
+    /// in TCC
+    /// / src/uniwill_keyboard.h in tuxedo-keyboard
+    pub async fn set_charging_profile(&mut self, profile: String) -> Result<(), io::Error> {
+        write_string(&mut self.charging_profile_file, profile).await
+    }
 }

tuxedo_sysfs/src/sysfs_util.rs

@@ -82,3 +82,7 @@ where
 pub(crate) async fn write_string(file: &mut fs::File, string: String) -> Result<(), io::Error> {
     write_buffer(file, string.into_bytes()).await
 }
+
+pub(crate) async fn write_int(file: &mut fs::File, int: u32) -> Result<(), io::Error> {
+    write_string(file, format!("{}", int)).await
+}