Date: Wed, 8 Nov 2006 04:34:29 -0600 (CST) From: Jacqueline P <jackie7691@yahoo.com.mx> To: Freebsd driverlist <freebsd-drivers@freebsd.org> Subject: PCCARD - interruptible sleep Message-ID: <20061108103429.24496.qmail@web56014.mail.re3.yahoo.com>
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Hi all
how can I implement an interruptible sleep within my pccard smart card reader driver like ?
For Linux I do this the following way
// interruptible_pause()
static inline void ipause(unsigned long amount) {
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(amount);
}
and within my driver I use the function DELAY which does a busy wait.
The problem is, that the driver does not recognize when the pccard is detached during a read / write operation.
Does the kernel update the struct device_t, so that the driver can use the function device_is_attached() to determine that the device is detached ?
Thanks,
Jacqueline
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