From: daniel.redway85@gmail.com (Daniel Redway)
To: kernelnewbies@lists.kernelnewbies.org
Subject: some defines I couldnt understand '_IOC_NONE 1U'
Date: Sat, 18 Jun 2011 18:39:45 +0300 [thread overview]
Message-ID: <BANLkTi=nqxai1W1sbwRsYDNHdLWv_0R7mg@mail.gmail.com> (raw)
Hello
I dont understand what means 'U' character. I found this defines in
asm/ioctl.h file.
Thanks
#define _IOC_NONE 1U
#define _IOC_READ 2U
#define _IOC_WRITE 4U
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Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-18 15:39 Daniel Redway [this message]
2011-06-18 16:00 ` some defines I couldnt understand '_IOC_NONE 1U' david kol.
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