xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ath5k: Read and write the TSF via debugfs

Browse Source 
This patch updates the ath5k specific entry in the debugfs to read and reset the TSF value, to allowing write it, too. This makes debugging the IBSS handling of wifi drivers _much_ easier.

Signed-off-by: Alina Friedrichsen <x-alina@gmx.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Alina Friedrichsen
2009-01-23 05:39:13 +01:00
committed by John W. Linville
parent ae54c985cc
commit 8cab7581db
3 changed files with 27 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/net/wireless/ath5k/debug.c
View File

@@ -210,15 +210,22 @@ static ssize_t write_file_tsf(struct file *file,
size_t count, loff_t *ppos)
{
struct ath5k_softc *sc = file->private_data;
char buf[20];
char buf[21];
unsigned long long tsf;
if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
if (copy_from_user(buf, userbuf, min(count, sizeof(buf) - 1)))
return -EFAULT;
buf[sizeof(buf) - 1] = '\0';
if (strncmp(buf, "reset", 5) == 0) {
ath5k_hw_reset_tsf(sc->ah);
printk(KERN_INFO "debugfs reset TSF\n");
} else {
tsf = simple_strtoul(buf, NULL, 0);
ath5k_hw_set_tsf64(sc->ah, tsf);
printk(KERN_INFO "debugfs set TSF to %#018llx\n", tsf);
}
return count;
}