[PATCH 6/7] HID: picoLCD: disable version check during probe
From: Bruno Prémont <bonbons@linux-vserver.org>
Date: 2012-07-30 19:40:42
Also in:
linux-input, lkml
Subsystem:
hid core layer, picolcd hid driver, the rest · Maintainers:
Jiri Kosina, Benjamin Tissoires, Bruno Prémont, Linus Torvalds
Commit 4ea5454203d991ec85264f64f89ca8855fce69b0 [HID: Fix race condition between driver core and ll-driver] introduced new locking around proce/remove functions that prevent any report/reply from hardware to reach driver until it returned from probe. As such, the ask-reply way to checking picoLCD firmware version during probe is bound to timeout and let probe fail. Disabling the check lets driver sucessfully probe again. Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org> --- drivers/hid/hid-picolcd_core.c | 8 ++++---- 1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/hid/hid-picolcd_core.c b/drivers/hid/hid-picolcd_core.c
index 2d7ef68..42d0791 100644
--- a/drivers/hid/hid-picolcd_core.c
+++ b/drivers/hid/hid-picolcd_core.c@@ -478,13 +478,13 @@ static int picolcd_probe_lcd(struct hid_device *hdev, struct picolcd_data *data) { int error; - error = picolcd_check_version(hdev); +/* error = picolcd_check_version(hdev); if (error) return error; if (data->version[0] != 0 && data->version[1] != 3) hid_info(hdev, "Device with untested firmware revision, please submit /sys/kernel/debug/hid/%s/rdesc for this device.\n", - dev_name(&hdev->dev)); + dev_name(&hdev->dev)); */ /* Setup keypad input device */ error = picolcd_init_keys(data, picolcd_in_report(REPORT_KEY_STATE, hdev));
@@ -534,7 +534,7 @@ err: static int picolcd_probe_bootloader(struct hid_device *hdev, struct picolcd_data *data) { - int error; +/* int error; error = picolcd_check_version(hdev); if (error)
@@ -542,7 +542,7 @@ static int picolcd_probe_bootloader(struct hid_device *hdev, struct picolcd_data if (data->version[0] != 1 && data->version[1] != 0) hid_info(hdev, "Device with untested bootloader revision, please submit /sys/kernel/debug/hid/%s/rdesc for this device.\n", - dev_name(&hdev->dev)); + dev_name(&hdev->dev)); */ picolcd_init_devfs(data, NULL, NULL, picolcd_out_report(REPORT_BL_READ_MEMORY, hdev),
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1.7.8.6