From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Sat, 29 Jul 2006 11:21:08 +0200
From: Jan Kiszka <jan.kiszka@domain.hid>
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Subject: [Xenomai-core] [PATCH] detect conflict with INPUT_PCSPKR
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This is a simple patch to catch the very rare but fatal conflict between
Xenomai's TSC emulation and the PC speaker driver on 2.6/x86.

Jan


--- include/asm-i386/hal.h      (Revision 1390)
+++ include/asm-i386/hal.h      (Arbeitskopie)
@@ -169,6 +169,11 @@ static inline unsigned long long rthal_r
     return t;
 }
 #else  /* !CONFIG_X86_TSC */
+#if defined(CONFIG_INPUT_PCSPKR) || defined(CONFIG_INPUT_PCSPKR_MODULE)
+#error Please disable PC speaker driver (CONFIG_INPUT_PCSPKR).
+#error It conflicts with Xenomai's TSC emulation.
+#endif /* CONFIG_INPUT_PCSPKR */
+
 #define RTHAL_8254_COUNT2LATCH  0xfffe
 void rthal_setup_8254_tsc(void);
 rthal_time_t rthal_get_8254_tsc(void);



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