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| author | Jacob McDonnell <jacob@jacobmcdonnell.com> | 2026-04-25 19:59:05 -0400 |
|---|---|---|
| committer | Jacob McDonnell <jacob@jacobmcdonnell.com> | 2026-04-25 19:59:05 -0400 |
| commit | 1f19f33e45791ea59aed048796fc68672c6723a5 (patch) | |
| tree | 54625fba89e91d1c2177801ec635e8528bba937f /static/netbsd/man4/acpiec.4 4.html | |
| parent | ac5e55f5f2af5b92794c2aded46c6bae85b5f5ed (diff) | |
docs: Removed Precompiled HTML
Diffstat (limited to 'static/netbsd/man4/acpiec.4 4.html')
| -rw-r--r-- | static/netbsd/man4/acpiec.4 4.html | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/static/netbsd/man4/acpiec.4 4.html b/static/netbsd/man4/acpiec.4 4.html deleted file mode 100644 index d11c6732..00000000 --- a/static/netbsd/man4/acpiec.4 4.html +++ /dev/null @@ -1,74 +0,0 @@ -<table class="head"> - <tr> - <td class="head-ltitle">ACPIEC(4)</td> - <td class="head-vol">Device Drivers Manual</td> - <td class="head-rtitle">ACPIEC(4)</td> - </tr> -</table> -<div class="manual-text"> -<section class="Sh"> -<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1> -<p class="Pp"><code class="Nm">acpiec</code> — <span class="Nd">ACPI - Embedded Controller</span></p> -</section> -<section class="Sh"> -<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1> -<p class="Pp"><code class="Cd">acpiec* at acpi?</code> - <br/> - <code class="Cd">acpiecdt* at acpi?</code></p> -</section> -<section class="Sh"> -<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1> -<p class="Pp">The <code class="Nm">acpiec</code> driver supports ACPI Embedded - Controllers.</p> -<p class="Pp">An ACPI Embedded Controller (EC) is typically a small - microprocessor that is responsible for various tasks related to ACPI. The - primary task is to handle ACPI specific interrupts, which are mapped to - so-called ACPI General Purpose Events (GPEs). Other possible functions - include embedded access to other buses such as the - <a class="Xr">iic(4)</a>.</p> -<p class="Pp">The ACPI specific events range from user initiated events to - events triggered by the hardware. When such an event occurs, typically - either a System Management Interrupt (SMI) or a System Control Interrupt - (SCI) is raised. The latter is an active, visible, shareable, level - interrupt. On most Intel chipsets SCI is hardwired to the interrupt number - 9. The main task of an EC is to raise a system control interrupt.</p> -<p class="Pp">All GPEs generate SCIs. A typical example of the internal wiring - of GPEs could involve <a class="Xr">gpio(4)</a>: when, e.g., the AC adapter - is connected, a certain GPIO line becomes active, a given GPE is flagged, - and a SCI interrupt is raised by the EC, leading to execution of ACPI - machine code in order to locate the handler associated with the event. A - corresponding driver, <a class="Xr">acpiacad(4)</a> in this case, will - finally finish the processing of the event.</p> -<p class="Pp">Due to the reasons described above, majority of ACPI specific - drivers are dysfunctional without <code class="Nm">acpiec</code>. It is - therefore recommended that <code class="Nm">acpiec</code> is always enabled, - even though it may not be required on some older systems.</p> -</section> -<section class="Sh"> -<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE - ALSO</a></h1> -<p class="Pp"><a class="Xr">acpi(4)</a></p> -</section> -<section class="Sh"> -<h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1> -<p class="Pp">The <code class="Nm">acpiec</code> driver appeared in - <span class="Ux">NetBSD 1.6</span>.</p> -</section> -<section class="Sh"> -<h1 class="Sh" id="CAVEATS"><a class="permalink" href="#CAVEATS">CAVEATS</a></h1> -<p class="Pp">Many machines depend on early attachment of - <code class="Nm">acpiec</code>. In such cases the information required by - <code class="Nm">acpiec</code> should be available as a separate and - optional Embedded Controller Descriptor Table (ECDT). If an ECDT is not - available or early attachment can not be carried out due other reasons, the - initialization of the whole <a class="Xr">acpi(4)</a> subsystem may be - problematic.</p> -</section> -</div> -<table class="foot"> - <tr> - <td class="foot-date">February 27, 2010</td> - <td class="foot-os">NetBSD 10.1</td> - </tr> -</table> |
