[freenos] r324 committed - USB UHCI Host Controller now prints the assigned IRQ by reading /dev/p...
- From: codesite-noreply@xxxxxxxxxx
- To: freenos@xxxxxxxxxxxxx
- Date: Tue, 18 Aug 2009 21:13:01 +0000
Revision: 324
Author: nieklinnenbank
Date: Tue Aug 18 14:01:05 2009
Log: USB UHCI Host Controller now prints the assigned IRQ by reading
/dev/pci/*.
http://code.google.com/p/freenos/source/detail?r=324
Modified:
/trunk/srv/usb/uhci/UHCIController.cpp
=======================================
--- /trunk/srv/usb/uhci/UHCIController.cpp Sun Aug 16 14:23:29 2009
+++ /trunk/srv/usb/uhci/UHCIController.cpp Tue Aug 18 14:01:05 2009
@@ -15,14 +15,52 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
#include <syslog.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
int main(int argc, char **argv)
{
+ char path[256];
+ int fd;
+ u8 irq;
+
+ /*
+ * Verify command-line arguments.
+ */
+ if (argc < 4)
+ {
+ return EXIT_SUCCESS;
+ }
+ /* Open the system log. */
openlog("USB", LOG_PID | LOG_CONS, LOG_USER);
- syslog(LOG_INFO, "UHCI Host Controller");
- closelog();
-
+
+ /* Construct path to read PCI interrupt. */
+ snprintf(path, sizeof(path), "/dev/pci/%s/%s/%s/interrupt",
+ argv[1], argv[2], argv[3]);
+
+ /* Attempt to open the file. */
+ if ((fd = open(path, O_RDONLY)) < 0)
+ {
+ syslog(LOG_ERR, "failed to open() `%s': %s",
+ path, strerror(errno));
+ return EXIT_FAILURE;
+ }
+ /* Read out PCI information. */
+ if ((read(fd, &irq, sizeof(irq))) < 0)
+ {
+ syslog(LOG_ERR, "failed to read() `%s': %s",
+ path, strerror(errno));
+ return EXIT_FAILURE;
+ }
+ syslog(LOG_INFO, "UHCI Host Controller at IRQ %d", irq);
+
+ /* All done. */
+ close(fd);
+ closelog();
return EXIT_SUCCESS;
}
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- » [freenos] r324 committed - USB UHCI Host Controller now prints the assigned IRQ by reading /dev/p... - codesite-noreply
