6081905edf
The fblog drivers provides a replacement for fbcon and prints all kernel log messages to all available framebuffer devices. As long as the driver is not upstream, I will keep it here for reference. See linux-serial@vger.kernel.org for discussion. Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
56 lines
1.5 KiB
Diff
56 lines
1.5 KiB
Diff
From 308643219b3ec4cb8c772459af6330d06d8bda82 Mon Sep 17 00:00:00 2001
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From: David Herrmann <dh.herrmann@googlemail.com>
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Date: Sat, 16 Jun 2012 23:31:18 +0200
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Subject: [PATCH 10/10] fblog: add "activate" module parameter
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This new parameter controls whether fblog is automatically activated when
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it is loaded. This defaults to "true".
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We can now compile with CONFIG_VT=n and CONFIG_FBLOG=y and control fblog
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with fblog.activate=0/1 on the kernel command line to enable/disable
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debugging.
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Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
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---
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drivers/video/console/fblog.c | 10 ++++++++++
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1 file changed, 10 insertions(+)
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diff --git a/drivers/video/console/fblog.c b/drivers/video/console/fblog.c
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index 9d3b072..cabc550 100644
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--- a/drivers/video/console/fblog.c
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+++ b/drivers/video/console/fblog.c
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@@ -94,6 +94,7 @@ struct fblog_fb {
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static struct fblog_fb *fblog_fbs[FB_MAX];
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static struct device *fblog_device;
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static atomic_t fblog_active;
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+static bool activate = 1;
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static void fblog_buf_resize(struct fblog_buf *buf, size_t width,
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size_t height)
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@@ -653,6 +654,12 @@ static int __init fblog_init(void)
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register_console(&fblog_con_driver);
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+ if (activate) {
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+ console_lock();
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+ fblog_activate();
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+ console_unlock();
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+ }
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+
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return 0;
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err_fb:
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@@ -677,6 +684,9 @@ static void __exit fblog_exit(void)
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put_device(fblog_device);
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}
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+module_param(activate, bool, S_IRUGO);
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+MODULE_PARM_DESC(activate, "Activate fblog by default");
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+
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module_init(fblog_init);
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module_exit(fblog_exit);
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MODULE_LICENSE("GPL");
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--
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1.7.10.4
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