greearb@xxxxxxxxxxxxxxx writes:
> From: Ben Greear <greearb@xxxxxxxxxxxxxxx>
>
> Using debugfs. More convenient than module options
> in some cases.
>
> Signed-off-by: Ben Greear <greearb@xxxxxxxxxxxxxxx>
> ---
> drivers/net/wireless/ath/ath10k/debug.c | 62 +++++++++++++++++++++++++++++++++
> 1 file changed, 62 insertions(+)
>
> diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
> index e251155..d552a4a 100644
> --- a/drivers/net/wireless/ath/ath10k/debug.c
> +++ b/drivers/net/wireless/ath/ath10k/debug.c
> @@ -870,6 +870,65 @@ static const struct file_operations fops_reg_addr = {
> .llseek = default_llseek,
> };
>
> +static ssize_t ath10k_read_debug_level(struct file *file,
> + char __user *user_buf,
> + size_t count, loff_t *ppos)
> +{
> + int sz;
> + const char buf[] =
> + "To change debug level, set value adding up desired flags:\n"
> + "PCI: 0x1\n"
> + "WMI: 0x2\n"
> + "HTC: 0x4\n"
> + "HTT: 0x8\n"
> + "MAC: 0x10\n"
> + "BOOT: 0x20\n"
> + "PCI-DUMP: 0x40\n"
> + "HTT-DUMP: 0x80\n"
> + "MGMT: 0x100\n"
> + "DATA: 0x200\n"
> + "BMI: 0x400\n"
> + "REGULATORY: 0x800\n"
> + "TESTMODE: 0x1000\n"
> + "INFO-AS-DBG: 0x40000000\n"
> + "FW: 0x80000000\n"
> + "ALL: 0xFFFFFFFF\n";
> + char wbuf[sizeof(buf) + 60];
> + sz = snprintf(wbuf, sizeof(wbuf), "Current debug level: 0x%x\n\n%s",
> + ath10k_debug_mask, buf);
> + wbuf[sizeof(wbuf) - 1] = 0;
> +
> + return simple_read_from_buffer(user_buf, count, ppos, wbuf, sz);
> +}
> +
> +/* Set logging level.
> + */
> +static ssize_t ath10k_write_debug_level(struct file *file,
> + const char __user *user_buf,
> + size_t count, loff_t *ppos)
> +{
> + struct ath10k *ar = file->private_data;
> + int ret;
> + unsigned long mask;
> +
> + ret = kstrtoul_from_user(user_buf, count, 0, &mask);
> + if (ret)
> + return ret;
> +
> + ath10k_warn(ar, "Setting debug-mask to: 0x%lx old: 0x%x\n",
> + mask, ath10k_debug_mask);
> + ath10k_debug_mask = mask;
> + return count;
> +}
There are already sysfs files for module parameters which seems to work
just fine for this case:
# echo 0xffffffff > /sys/module/ath10k_core/parameters/debug_mask
--
Kalle Valo
