From: "Christian Tröster" <please.see.sig@gmx.de>
To: linuxppc-embedded <linuxppc-embedded@lists.linuxppc.org>
Subject: Re: Notifying a user space application
Date: Thu, 01 Jul 2004 14:33:54 +0200 [thread overview]
Message-ID: <40E404B2.8040101@gmx.de> (raw)
In-Reply-To: <1088662847.6010.2.camel@lucy.pep-kaufbeuren.de>
Hi Stefan!
Stefan Nickl schrieb:
> On Thu, 2004-07-01 at 00:29, Christian Tröster wrote:
>>I'd like to notify a user space application if an interrupt occurs. I
>>had no
>>problems to install a custom signal handler but I am not sure what's
>>the best
>>way to notify the application.
> Mostly a stripped-down ppdev.
Thanks for posting your code. It works perfectly. I only had to change
one line adding an initialization value for the spin lock.
> /*
> * Open the device. It is single-open.
> */
> int wfi_s_count = 0;
> spinlock_t wfi_s_lock;
spinlock_t wfi_s_lock = SPIN_LOCK_UNLOCKED;
> static int wfi_open (struct inode *inode, struct file *file)
> {
> file->private_data = &wfi_global;
Bye, Christian
--
| Mail: c dot troester at gmx dot de | PGP-Id: FA006C74 |
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prev parent reply other threads:[~2004-07-01 12:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-30 22:29 Notifying a user space application Christian Tröster
2004-07-01 6:20 ` Stefan Nickl
2004-07-01 12:33 ` Christian Tröster [this message]
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